Nature and the environment

1. Scientists say that one species of plant, animal or insect becomes .................every day.

2. A lot of trash can be .................... .

3. What can we do to protect the .....................?

4. Every person produces about 650 tons of ...................... .

5. Today coastal waters have become very ................ and whales and dolphins are killed in great numbers.

6. Forests produce........ .

7. The natural ................of animals is often distroyed by human activity.

8. ..................... is the study of the interaction of people with their environment.

9. If we .............. the air with our cars, we.................. serious health problems.

10. If we.......the animals, we........them a chance to survive.

11. Clean water ........a problem if people ........throwing rubbish into the seas and rivers.

12. Our planet ....... if we........ecofriendly.

13. If the air .........too dirty, we..........masks.

14. If the situation ..........., a lot of species ............... .

15. There .........so much pollution if people ........... things.