II. Vocabulary: complete the sentenses.

1. To ........................... deforestation, we can plant trees.

2. To ....................... endangered animals, we can adopt an animal.

3. To reduce rubbish, we can recycle or ...............

4. How much rubbish do you throw .......................?

5. We ...................... part in many environmental projects.

6. A mammal .......................... its babies milk.

7. A chameleon is a ......................

8. A frog is a ............................

9. Don't ................... the environment.

10. We should .................. less electricity.