UNIT 8 3. Arrange the questions and answer them.
1. do/people/cut/why/trees?
2. the/people/pollute/how/air/do?
3. leave/animals/their/why/do/homes?​

1. Why do people cut trees?

Answer- People make furniture, paper and many other useful things out of wood.

2. How do people pollute the air?

Answer- Home stoves, cars, factories and forest fires are major sources of air pollution.

3. Why do animals leave their homes?

Answer- Scientists think there are a number of reasons why young animals leave home. By doing so, they avoid competing with their relatives for resources. They avoid competing with each other for mates. They also avoid inbreeding which can lead to less healthy offspring.

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