Class 9 English GuideUnit - 7Ecology and Environment Guide
Look at the picture and talk about the components of the environment.Answer - The given picture shows the different components of the environment. The major components of the environment of our earth are the atmosphere, Alaskan hydrosphere, lithosphere, ecosphere, and biosphere. Atmosphere refers to the layer' of air or gases that surround the earth whereas hydrosphere refers to all mass of water found on, under, and above the surface of the earth. Likewise, the lithosphere is the outer part of the earth which consists of rocks and soil whereas the ecosphere is the component of the environment where all the interactions between living and non-living things take place. In a similar vein, the biosphere is the worldwide sum of all ecosystems.
Reading IAnswer these questions.a. What preparations do you and your family make as the winter season approaches?Answer - As the winter season approaches, I and my family collect the wood necessary for about three to four months, buy warm clothes, maintain our heater in working conditions, and buiv hot soup packets.
b. How do animals and birds protect themselves from the cold?Answer - Some animals go for winter sleep by hiding in holes and burrows in winter to protect themselves from the cold. Likewise, some birds migrate from cold places to warmer places to protect themselves from the cold.
Complete Class 9 English Guide Android application
How do Animals Spend the Winter?
Short SummaryWhat about animals? 80 English 9 A Animals do many different, amazing things to get through the winter.
B Some animals remain and stay active in the winter.
C Animals may find winter shelter in holes in trees or logs, under rocks or leaves, or underground.
There are a few insects, like the winter stonefly, crane fly, and snow fleas, that are normally active in winter.
D Some animals hibernate for part or all of the winter.
In the autumn, these animals get ready for winter by eating extra food and storing it as body fat.
E Cold-blooded animals like fish, frogs, snakes and turtles have no way to keep warm during the winter.
A. Find the words from the text that have the following meanings.a. a shop that sells food and other things used in homesAnswer - grocery
b. related to the regions around the North PoleAnswer - Arctictern
c. an underground passageAnswer - tunnel
d. to find the right way to deal with a difficult situationAnswer - navigate
e. a person who works on a ship as a member of the crewAnswer - sailor
f. to change behavior in order to deal more successfully with a new situationAnswer - adapt
g. a very small green or yellow plant that spreads over wet surfaces, rocks, trees, etc.Answer - moss
h. to gather closely together, usually because of cold or fearAnswer - huddle
Class 9 English Guide
Unit - 7
Ecology and Environment Guide
B. Read the paragraph A-E and match them to the suitable titles.Answer - Paragraphs TitlesA------------ Migration to New PlacesB-------------Adaptation to New WeatherC-------------Living in Underground HolesD------------Going into a Deep SleepE------------Other Ways to Survive
C. Write True or False against the following statements.a. Animals wear thick coats to protect themselves from the cold.Answer - False
b. Flying in flocks helps birds protect themselves from the cold.Answer - True
c. Birds do not travel far to avoid the cold.Answer - True
d. Some animals collect extra food for winter.Answer - True
e. Snow fleas hybernate in winter.Answer - False
f. Cold water makes it difficult for some animals to breathe.Answer - False
D. Answer the following questions.a. Why do birds migrate in groups?Answer - Birds migrate in groups to protect themselves from cold.
b. What controls the migration cycle of birds?Answer - The migration cycle of birds is controlled by daylight and the weather.
c. How do birds find the same place for migration each year?Answer - Birds seem to have a compass in their brain for using Earth's magnetic field and because of this, they can find out the same place each year.
d. Why do you think squirrels and mice huddle close together in winter?Answer - Squirrels and mice huddle close together in winter in order to their body warm.
e. How do animals maintain energy during hibernation?Answer - During hibernation, the animal's body temperature drops and heartbeat and breathing slow down maintaining the energy level down.
f. How do frogs, turtles and fish change their habitats to survive in winter?Answer - Frogs, turtles and fish hide under rocks, logs or fallen leaves or they can bury themselves in mud to survive in winter.
E. What do people do to avoid cold weather? Talk to your friends.Answer - People, in order to avoid cold weather, do the following activities:
a. Wear warm clothes
b. Sit in the sunshine
c. Drink and eat hot soup d. Sit around the fire, heater, etc.
B. Have similar conversations in pairs using the given clues.a. Your friend has got a new camera but cannot operate it.Answer - Sita : Can I help with your new camera to operate it? Hari : Yes, please. I am unable to do it.
b. Your friend has forgotten to bring money to buy snacks.Answer - Sita : I'll lend you some money if you have forgotten yours. Hari : Sure, I'll return you back.
c. Your friend has a problem with English grammar.Answer - Hari : Can I help you with your English grammar? Ram : Sure, that would be very kind of you.
d. Your friend feels unwell in the classroom.Answer - Sita : Would you like to take a rest? Ram : Yes, please. That would be very nice for me.
e. Your friend looks thirsty, and he doesn't have any water.Answer - Sita : Shall I bring water for you? Ram : Yes, I am feeling thirsty.
f. Your friend is drawing a picture, but his/her pencil gets broken.Answer - Hari : I'll bring another pencil if you like. Ram : No thanks. I will arrange it myself.
C. Work in pairs. Take turns to make and accept or reject offers based on the clues below.a. a chocolate Answer - Hari : Would you like a chocolate? Shyam : Yes of course.
b. a seat on a busAnswer - Rita : Would you like to seat on a bus? Sita : Sure, my legs are paining.
c. to carry his/her bag Answer - Rita : Can I help you to carry your bag? Hari: No thanks. It's not so heavy.
d. to drive you back homeAnswer - Sarita : Would you please drive me back to my home? Gita : Yes sure, come and sit in the car
e. some money Answer - Sarita : I'll lend you some money if you need it. Rita : No. I'll arrange it myself.
f. provide a discountAnswer - Ram: I'll provide you with a discount of 5% while buying this. Hari : No. I don't want that.
Grammar IB. Use the correct form of the verbs from the brackets to complete thesentences.a. If you call me, I ......... (come).Answer - will come
b. If you ......... (not leave), I'll call the police.Answer - don't leave
c. Somebody ......... (notice) if you make a mistake.Answer - will notic
d. If I see her, I ......... (tell) her to call you.Answer - will tell
e. She ......... (be) very angry if you don’t apologise.Answer - will be
f. They will be happy if we ......... (invite) them to the party.Answer - invite
g. Will they pay any more if I ......... (work) harder?Answer - work
h. If you don’t lock your bicycle, someone ......... (steal) it.Answer - will steal
i. I ......... (lend) you some money if you promise not to waste it.Answer - will lend
j. Unless you use your English, it ......... (not improve).Answer - will not improve
k. You must study hard if you ......... (want) to join college.Answer - want
Writing Ia. Which is the topic sentence or main idea of the paragraph? Where is it stated?Answer - The topic sentence or main idea of the paragraph is “The most important problem in our city is its poor public transportation system”. It is stated in the first line of the paragraph.
b. What details does the writer use to support the main idea?Answer - To support the main idea, i.e. the poor public transportation system of the city, the writer provides details such as unreliable daily schedules of transportation, bus arriving late and people missing important appointments.
c. Underline the conclusion of the paragraph.Answer - The conclusion of the paragraph is "In order to help their destinations on time, people must allow for wanting to date time at the bus stops.
d. What ought to be the topic of this paragraph?Answer - The suitable of this paragraph would be "City's Poor Publin Transportation System"
Reading IILook at the picture below and answer these questions.
a. What do you think the man is doing?Answer - The man is spreading pesticides over the plants.
b. Why do you think he is doing so?Answer - The man is doing so in order to kill pests that destroy his crops.
The Resistant Moths
Short Summary"First they told us to buy the poisons to help us kill the pests," says Mahendra bitterly.
"Then they said we need poisons to combat the problems caused by the first pesticides. Now they say we shouldn't have used so much of those pesticides. My God, I think these insects will eat us alive." MahendraYadav is a farmer whose fields have been swamped by a strange new plague of moths that nothing will shift.
Back in the early 1990s government officials told farmers about amazing English 9 87 pesticides which would kill the insects in their field and soon make them rich.
Despite the mixture of powerful chemicals on the potatoes, a few moths survived.
The farmers' first reaction was to increase the dose of the pesticide then to try new chemicals, one after another.
It just needed one or two resistant moths to survive and they could produce a new and tougher strain, immune to the most powerful pesticide.
New pesticides came in with new promises that they would finish off the evil moth.
A. Use the correct words from the box below to complete the following sentences.a. As responsible citizens it is our duty to ............... all social evils.Answer - combat
b. The whole town is suffering from the new ........of rats.Answer - plague
c. The minister’s opinion has created ........of controversy.Answer - avalanche
d. He got a ............cut above his eye in the accident.Answer - nasty
e. Some animals do not have a natural .........Answer - predator
f. Mosquitoes seem to have become .......to the toughest insecticides.Answer - resistant
g. He is in .........due to all the failures in business.Answer - despair
B. The word 'devour' refers to a style of eating. It means ‘eating hungrily’. The following words also refer to different styles of eating. Use a dictionary to find their meanings.a. munch ...............Answer - eat something steadily and often noisily
b. nibble ..........Answer - bite something with small bites
c. gobble ............Answer - eat something very fast
d. gnaw ...........Answer - keep biting something
e. swallow .................Answer - make food, drink, etc. go down your throat into your stomach
C. Write whether the following sentences are True or False.a. The first use of pesticides caused further problems to the farmers.Answer - True
b. The shopkeepers made the farmers buy many pesticides.Answer - True
c. Mahendra Yadav admits that the farmers used chemicals carelessly.Answer - True
d. The pesticides not only killed the pests but also increased the fertility of the land.Answer - False
e. Mahendra Yadav expects that the moths will go away one day.Answer - True
D. Answer the following questions.a. Why do you think Mahendra Yadav says “these insects will eat us alive"?Answer - Mahendra Yadav says that these insects will eat us alive because he is a farmer and his fields have been swamped by a strange new plague of moths.
b What did the farmers hope when they bought the pesticides for the first time?Answer - Farmers hoped that the pesticides would kill all the pests of their crop and help to enlarge the productivity of their crops.
c. What was the ‘nasty surprise’ for the farmers?Answer - Though farmers used powerful chemicals, a few moths survived and they reproduced themselves at a terrifying rate, devouring all potatoes they could find. This was the ‘nasty surprise for the farmers.
d. Find different words in the text that refer to the pesticide and the moth.Answer - pesticide + poison, chemicals moth → pests, insects
e. Do you think that Mahendra Yadav has made a wise decision at the end? Why?Answer - Even when Mahendra Yadav had used a large amount of pesticides, the pests weren't totally controlled. Because of this reason, I think he has made a wise decision at the end by avoiding the use of pesticides and adopting the natural method of farming.
E. Why is the use of pesticides harmful to both people and the environment? What could be a good alternative to pesticides? Discuss with your friends.Answer - The use of pesticides may seem to be helpful and useful at the beginning but it is toxic. The continuous use of pesticides not only kills pests that are harmful to crops but also kills the pests that are useful to balance and maintain the ecosystem. This, in turn, disturbs the ecosystem and environment. Even the crops produced are harmful and poisonous to human beings. Because of this reason, the use of pesticides is harmful for both people and the environment. The good alternative to the pesticides are given below: The following methods could be a good alternative to the pesticide . a. Companion planting: planting certain types of plants will Det some pests away. b. "Soft" chemicals: soap, stinging nettles, and rhubarbs provide. excellent alternatives to pesticides. c. Parasites: certain pests are often easily targeted by specific parasites. d. Predators: ladybird beetles and birds will decimate many pest infestations in short order.
Grammar IIA. Complete the sentences with the correct form of the verbs given in the brackets.a. If we hurry, we .............. there in time. (get)Answer - will get
b. I won't go to the doctor unless the pain ............ (increase)Answer - increases
c. If you spit in public place, you ............. into trouble. (get)Answer - will get
d. We ........... for a picnic tomorrow if the weather stays nice. (go)Answer - will go
e. Everyone ........... you if you tell them the truth. (believe)Answer - believes
f. If he ........... up, he won't get to work on time. (not wake)Answer - doesn't wake
g. If the baby .............. a boy, I'll call him Nitesh. (be)Answer - is
h. You can cause an accident if you ........... so carelessly. (drive)Answer - drive
i. Unless she ...... the ambulance immediately, her father may die. (call)Answer - call
j. If you try harder, you ........ in your exams. (succeed)Answer - will succeed
B. Complete the following sentences with suitable endings.a. If you are hungry, ................................ .Answer - I will give you some food.
b. If he runs fast, ...................................... .Answer - he will reach on exam time
c. They will win the match if ..................................... .Answer - they play well
d. If you phone him, ..................................... .Answer - he will come
e. If Mira fails the exam, ................................ .Answer - she will be unhappy
f. Manashi will be promoted to grade ten if .............................. .Answer - she labors hard
B. Write a letter to the editor of a local newspaper highlighting the importance of natural resources in Nepal, and ways of preserving them.Answer - The Editor The Himalayan Times Kathmandu, Nepal Dear Sir, Natural resources are the resources that are found in nature and are available free of cost to us. Natural resources such as air, soil, forests, metals, minerals, and others are obligatory parts of our life. We need air for respiration. Plants also ed air for respiration. Plants also need air for respiration as well as during photosynthesis. Likewise, we live on land and we build our houses on the land, We need water for drinking and carrying out other different works. Not only this, we also use other natural resources such as - metals and minerals in our daily life. No animals in this world can imagine their life in absence of natural resources. Nepal too is a country that is rich in natural resources. We have beautiful snow-capped mountains in the north, beautiful hills and valleys in the middle, and fertile soil in the south of Nepal. More than 40% of the total area of Nepal is covered with forests. From the forest, we can get firewood, timber, fodder, medicinal herbs, and so on. Different wild animals live in forests and tourists from different countries come here to see these wild animals. Similarly, Nepal is a rich country after Brazil in water resources as there are more than 5000 rivers and rivulets flowing through different parts of Nepal. We can use this water for the purpose of drinking, irrigation as well as generating hydroelectricity. Likewise, Nepal has many explored and unexplored reserves of minerals and ores in Nepal which can be explored successfully for the development of the nation. Thus, if we can utilize the different resources of Nepal, we can progress a lot. However, it is very essential to utilize these resources in a systematic and scientific way. If it is not done so, it can be counterproductive. And for this, people should be encouraged to exploit these resources carefully. There must be a wise and just distribution of the available natural resources. Random and haphazard cutting down of trees must be controlled. The wastes must be collected and disposed of properly so that they don't hamper the environment negatively. In addition to this. all people of Nepal should be made aware of the conservation of neural resources and the government too must be responsible for facilitating and encouraging the people to do so. Your faithfully, Sita
Project workAnswer 
Reading I
Answer these questions.
a. What preparations do you and your family make as the winter season approaches?
Answer - As the winter season approaches, I and my family collect the wood necessary for about three to four months, buy warm clothes, maintain our heater in working conditions, and buiv hot soup packets.
b. How do animals and birds protect themselves from the cold?
Answer - Some animals go for winter sleep by hiding in holes and burrows in winter to protect themselves from the cold. Likewise, some birds migrate from cold places to warmer places to protect themselves from the cold.
Complete Class 9 English Guide Android application
How do Animals Spend the Winter?
Short Summary
What about animals? 80 English 9 A Animals do many different, amazing things to get through the winter.
B Some animals remain and stay active in the winter.
C Animals may find winter shelter in holes in trees or logs, under rocks or leaves, or underground.
There are a few insects, like the winter stonefly, crane fly, and snow fleas, that are normally active in winter.
D Some animals hibernate for part or all of the winter.
In the autumn, these animals get ready for winter by eating extra food and storing it as body fat.
E Cold-blooded animals like fish, frogs, snakes and turtles have no way to keep warm during the winter.
A. Find the words from the text that have the following meanings.
a. a shop that sells food and other things used in homes
Answer - grocery
b. related to the regions around the North Pole
Answer - Arctictern
c. an underground passage
Answer - tunnel
d. to find the right way to deal with a difficult situation
Answer - navigate
e. a person who works on a ship as a member of the crew
Answer - sailor
f. to change behavior in order to deal more successfully with a new situation
Answer - adapt
g. a very small green or yellow plant that spreads over wet surfaces, rocks, trees, etc.
Answer - moss
h. to gather closely together, usually because of cold or fear
Answer - huddle
Class 9 English Guide
Unit - 7
Ecology and Environment Guide
B. Read the paragraph A-E and match them to the suitable titles.
Answer -
Paragraphs Titles
A------------ Migration to New Places
B-------------Adaptation to New Weather
C-------------Living in Underground Holes
D------------Going into a Deep Sleep
E------------Other Ways to Survive
C. Write True or False against the following statements.
a. Animals wear thick coats to protect themselves from the cold.
Answer - False
b. Flying in flocks helps birds protect themselves from the cold.
Answer - True
c. Birds do not travel far to avoid the cold.
Answer - True
d. Some animals collect extra food for winter.
Answer - True
e. Snow fleas hybernate in winter.
Answer - False
f. Cold water makes it difficult for some animals to breathe.
Answer - False
D. Answer the following questions.
a. Why do birds migrate in groups?
Answer - Birds migrate in groups to protect themselves from cold.
b. What controls the migration cycle of birds?
Answer - The migration cycle of birds is controlled by daylight and the weather.
c. How do birds find the same place for migration each year?
Answer - Birds seem to have a compass in their brain for using Earth's magnetic field and because of this, they can find out the same place each year.
d. Why do you think squirrels and mice huddle close together in winter?
Answer - Squirrels and mice huddle close together in winter in order to their body warm.
e. How do animals maintain energy during hibernation?
Answer - During hibernation, the animal's body temperature drops and heartbeat and breathing slow down maintaining the energy level down.
f. How do frogs, turtles and fish change their habitats to survive in winter?
Answer - Frogs, turtles and fish hide under rocks, logs or fallen leaves or they can bury themselves in mud to survive in winter.
E. What do people do to avoid cold weather? Talk to your friends.
Answer - People, in order to avoid cold weather, do the following activities:
a. Wear warm clothes
b. Sit in the sunshine
c. Drink and eat hot soup
a. Wear warm clothes
b. Sit in the sunshine
c. Drink and eat hot soup
d. Sit around the fire, heater, etc.
B. Have similar conversations in pairs using the given clues.
a. Your friend has got a new camera but cannot operate it.
Answer -
Sita : Can I help with your new camera to operate it?
Hari : Yes, please. I am unable to do it.
b. Your friend has forgotten to bring money to buy snacks.
Answer -
Sita : I'll lend you some money if you have forgotten yours.
Hari : Sure, I'll return you back.
c. Your friend has a problem with English grammar.
Answer -
Hari : Can I help you with your English grammar?
Ram : Sure, that would be very kind of you.
d. Your friend feels unwell in the classroom.
Answer -
Sita : Would you like to take a rest?
Ram : Yes, please. That would be very nice for me.
e. Your friend looks thirsty, and he doesn't have any water.
Answer -
Sita : Shall I bring water for you?
Ram : Yes, I am feeling thirsty.
f. Your friend is drawing a picture, but his/her pencil gets broken.
Answer -
Hari : I'll bring another pencil if you like.
Ram : No thanks. I will arrange it myself.
C. Work in pairs. Take turns to make and accept or reject offers based on the clues below.
a. a chocolate
Answer -
Hari : Would you like a chocolate?
Shyam : Yes of course.
b. a seat on a bus
Answer -
Rita : Would you like to seat on a bus?
Sita : Sure, my legs are paining.
c. to carry his/her bag
Answer -
Rita : Can I help you to carry your bag?
Hari: No thanks. It's not so heavy.
d. to drive you back home
Answer -
Sarita : Would you please drive me back to my home?
Gita : Yes sure, come and sit in the car
e. some money
Answer -
Sarita : I'll lend you some money if you need it.
Rita : No. I'll arrange it myself.
f. provide a discount
Answer -
Ram: I'll provide you with a discount of 5% while buying this.
Hari : No. I don't want that.
Grammar I
B. Use the correct form of the verbs from the brackets to complete the
sentences.
a. If you call me, I ......... (come).
Answer - will come
b. If you ......... (not leave), I'll call the police.
Answer - don't leave
c. Somebody ......... (notice) if you make a mistake.
Answer - will notic
d. If I see her, I ......... (tell) her to call you.
Answer - will tell
e. She ......... (be) very angry if you don’t apologise.
Answer - will be
f. They will be happy if we ......... (invite) them to the party.
Answer - invite
g. Will they pay any more if I ......... (work) harder?
Answer - work
h. If you don’t lock your bicycle, someone ......... (steal) it.
Answer - will steal
i. I ......... (lend) you some money if you promise not to waste it.
Answer - will lend
j. Unless you use your English, it ......... (not improve).
Answer - will not improve
k. You must study hard if you ......... (want) to join college.
Answer - want
Writing I
a. Which is the topic sentence or main idea of the paragraph? Where is it stated?
Answer - The topic sentence or main idea of the paragraph is “The most important problem in our city is its poor public transportation system”. It is stated in the first line of the paragraph.
b. What details does the writer use to support the main idea?
Answer - To support the main idea, i.e. the poor public transportation system of the city, the writer provides details such as unreliable daily schedules of transportation, bus arriving late and people missing important appointments.
c. Underline the conclusion of the paragraph.
Answer - The conclusion of the paragraph is "In order to help their destinations on time, people must allow for wanting to date time at the bus stops.
d. What ought to be the topic of this paragraph?
Answer - The suitable of this paragraph would be "City's Poor Publin Transportation System"
Reading II
Look at the picture below and answer these questions.
a. What do you think the man is doing?
Answer - The man is spreading pesticides over the plants.
b. Why do you think he is doing so?
Answer - The man is doing so in order to kill pests that destroy his crops.
The Resistant Moths
Short Summary
"First they told us to buy the poisons to help us kill the pests," says Mahendra bitterly.
"Then they said we need poisons to combat the problems caused by the first pesticides. Now they say we shouldn't have used so much of those pesticides. My God, I think these insects will eat us alive." MahendraYadav is a farmer whose fields have been swamped by a strange new plague of moths that nothing will shift.
Back in the early 1990s government officials told farmers about amazing English 9 87 pesticides which would kill the insects in their field and soon make them rich.
Despite the mixture of powerful chemicals on the potatoes, a few moths survived.
The farmers' first reaction was to increase the dose of the pesticide then to try new chemicals, one after another.
It just needed one or two resistant moths to survive and they could produce a new and tougher strain, immune to the most powerful pesticide.
New pesticides came in with new promises that they would finish off the evil moth.
A. Use the correct words from the box below to complete the following sentences.
a. As responsible citizens it is our duty to ............... all social evils.
Answer - combat
b. The whole town is suffering from the new ........of rats.
Answer - plague
c. The minister’s opinion has created ........of controversy.
Answer - avalanche
d. He got a ............cut above his eye in the accident.
Answer - nasty
e. Some animals do not have a natural .........
Answer - predator
f. Mosquitoes seem to have become .......to the toughest insecticides.
Answer - resistant
g. He is in .........due to all the failures in business.
Answer - despair
B. The word 'devour' refers to a style of eating. It means ‘eating hungrily’. The following words also refer to different styles of eating. Use a dictionary to find their meanings.
a. munch ...............
Answer - eat something steadily and often noisily
b. nibble ..........
Answer - bite something with small bites
c. gobble ............
Answer - eat something very fast
d. gnaw ...........
Answer - keep biting something
e. swallow .................
Answer - make food, drink, etc. go down your throat into your stomach
C. Write whether the following sentences are True or False.
a. The first use of pesticides caused further problems to the farmers.
Answer - True
b. The shopkeepers made the farmers buy many pesticides.
Answer - True
c. Mahendra Yadav admits that the farmers used chemicals carelessly.
Answer - True
d. The pesticides not only killed the pests but also increased the fertility of the land.
Answer - False
e. Mahendra Yadav expects that the moths will go away one day.
Answer - True
D. Answer the following questions.
a. Why do you think Mahendra Yadav says “these insects will eat us alive"?
Answer - Mahendra Yadav says that these insects will eat us alive because he is a farmer and his fields have been swamped by a strange new plague of moths.
b What did the farmers hope when they bought the pesticides for the first time?
Answer - Farmers hoped that the pesticides would kill all the pests of their crop and help to enlarge the productivity of their crops.
c. What was the ‘nasty surprise’ for the farmers?
Answer - Though farmers used powerful chemicals, a few moths survived and they reproduced themselves at a terrifying rate, devouring all potatoes they could find. This was the ‘nasty surprise for the farmers.
d. Find different words in the text that refer to the pesticide and the moth.
Answer - pesticide + poison, chemicals
moth → pests, insects
e. Do you think that Mahendra Yadav has made a wise decision at the end? Why?
Answer - Even when Mahendra Yadav had used a large amount of pesticides, the pests weren't totally controlled. Because of this reason, I think he has made a wise decision at the end by avoiding the use of pesticides and adopting the natural method of farming.
E. Why is the use of pesticides harmful to both people and the environment? What could be a good alternative to pesticides? Discuss with your friends.
Answer -
The use of pesticides may seem to be helpful and useful at the beginning but it is toxic. The continuous use of pesticides not only kills pests that are harmful to crops but also kills the pests that are useful to balance and maintain the ecosystem. This, in turn, disturbs the ecosystem and environment. Even the crops produced are harmful and poisonous to human beings. Because of this reason, the use of pesticides is harmful for both people and the environment. The good alternative to the pesticides are given below:
The following methods could be a good alternative to the pesticide .
a. Companion planting: planting certain types of plants will Det some pests away.
b. "Soft" chemicals: soap, stinging nettles, and rhubarbs provide. excellent alternatives to pesticides.
c. Parasites: certain pests are often easily targeted by specific parasites.
d. Predators: ladybird beetles and birds will decimate many pest infestations in short order.
Grammar II
A. Complete the sentences with the correct form of the verbs given in the brackets.
a. If we hurry, we .............. there in time. (get)
Answer - will get
b. I won't go to the doctor unless the pain ............ (increase)
Answer - increases
c. If you spit in public place, you ............. into trouble. (get)
Answer - will get
d. We ........... for a picnic tomorrow if the weather stays nice. (go)
Answer - will go
e. Everyone ........... you if you tell them the truth. (believe)
Answer - believes
f. If he ........... up, he won't get to work on time. (not wake)
Answer - doesn't wake
g. If the baby .............. a boy, I'll call him Nitesh. (be)
Answer - is
h. You can cause an accident if you ........... so carelessly. (drive)
Answer - drive
i. Unless she ...... the ambulance immediately, her father may die. (call)
Answer - call
j. If you try harder, you ........ in your exams. (succeed)
Answer - will succeed
B. Complete the following sentences with suitable endings.
a. If you are hungry, ................................ .
Answer - I will give you some food.
b. If he runs fast, ...................................... .
Answer - he will reach on exam time
c. They will win the match if ..................................... .
Answer - they play well
d. If you phone him, ..................................... .
Answer - he will come
e. If Mira fails the exam, ................................ .
Answer - she will be unhappy
f. Manashi will be promoted to grade ten if .............................. .
Answer - she labors hard
B. Write a letter to the editor of a local newspaper highlighting the importance of natural resources in Nepal, and ways of preserving them.
Answer -
The Editor The Himalayan Times Kathmandu, Nepal
Dear Sir,
Natural resources are the resources that are found in nature and are available free of cost to us. Natural resources such as air, soil, forests, metals, minerals, and others are obligatory parts of our life. We need air for respiration. Plants also ed air for respiration. Plants also need air for respiration as well as during photosynthesis. Likewise, we live on land and we build our houses on the land, We need water for drinking and carrying out other different works. Not only this, we also use other natural resources such as - metals and minerals in our daily life. No animals in this world can imagine their life in absence of natural resources. Nepal too is a country that is rich in natural resources. We have beautiful snow-capped mountains in the north, beautiful hills and valleys in the middle, and fertile soil in the south of Nepal. More than 40% of the total area of Nepal is covered with forests. From the forest, we can get firewood, timber, fodder, medicinal herbs, and so on. Different wild animals live in forests and tourists from different countries come here to see these wild animals. Similarly, Nepal is a rich country after Brazil in water resources as there are more than 5000 rivers and rivulets flowing through different parts of Nepal. We can use this water for the purpose of drinking, irrigation as well as generating hydroelectricity. Likewise, Nepal has many explored and unexplored reserves of minerals and ores in Nepal which can be explored successfully for the development of the nation. Thus, if we can utilize the different resources of Nepal, we can progress a lot. However, it is very essential to utilize these resources in a systematic and scientific way. If it is not done so, it can be counterproductive. And for this, people should be encouraged to exploit these resources carefully. There must be a wise and just distribution of the available natural resources. Random and haphazard cutting down of trees must be controlled. The wastes must be collected and disposed of properly so that they don't hamper the environment negatively. In addition to this. all people of Nepal should be made aware of the conservation of neural resources and the government too must be responsible for facilitating and encouraging the people to do so.
Your faithfully,
Sita
Project work
Answer
Class 9 English Guide - Click any unit and view class 9 English notes
Unit - 3 Family, Market and Public Places
Unit - 5 Ethics, Norms and Values
Unit - 7 Ecology and Environment
Unit - 8 Science and Technology
Unit - 11 Gadgets and Instruments
Unit - 13 Organisation Profile and Authority
Unit - 14 History and Civilisation
Unit - 15 People and Lifestyle
Unit - 17 Global Warming and Climate Change
Unit - 18 Transportation and Communication
