Define the terms
1. Pollution- This means making something harmful or dirty for living things or the environment.
2. Environment- This means the living and non-living things that surround us.
3. Impure- This means not pure or unclean.
Answer in one line
1. What makes our environment?
Ans. Living and non-living things make up the environment.
2. Name any three living things.
Ans. People, plants, and animals are three examples of living things.
3. Which type of pollution causes asthma?
Ans. Asthma is caused by air pollution.
Answer in short
1. Name the four types of pollution?
Ans. Four kinds of pollution are- Air pollution, water pollution, land pollution, and noise pollution.
2. What are natural environment? and man-made environment?
Ans. The natural environment includes all those things which are made by nature. And man-made includes all those things which are made by humans.
3. Write two causes of noise pollution?
Ans. The loud sound of speakers, honking, and bursting of crackers are causes of noise pollution.
4. Mention two advised effects of noise pollution?
Ans. The advised effect of noise pollution are- can cause deafness and high blood pressure.
Answer in detail
1. What makes the water dirty?
Ans. Water gets polluted due to many human activities such as.
i) Bathing and washing clothes in water bodies.
ii) Bathing of animals.
iii) Waste released from houses and factories.
iv) Throwing dead bodies in the water.
2. How does the air get polluted?
Ans. Air gets polluted by activities like-
i) Released smoke from factories and vehicles.
ii) Smoke from the bursting of firecrackers
iii) Smoke from the burning of wood and garbage.
3. List some ways by which we can save our environment?
Ans. By following some steps we can save our environment like.
i) Plant more trees and take care of them.
ii) Always throw waste in covered dustbins.
iii) Say no to polythene bags.
iv) Avoid vehicles for short distances.
v) Save paper, Save trees
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