LII. Complete each sentence with one of the words or phrases below.
(1) environment; (2) cut down; (3) causes; (4) pollution; (5) packaging; (6) environmental;
(7) dangerous; (8) save; (9) protect; (10) litter
1. You shouldn't use your car because it … noise and air pollution.
2. This notice can be seen at the zoo or at the circus to … people from danger.
3. He wants to become an ecologist himself to research and protect the … .
4. Recently, however, our beach has become more polluted with … left by tourists and locals.
5. Our forests are disappearing because they are … or burnt.
6. Your family can begin trying to … the Earth right now.
7. If you go the seaside, you'll see the … around you.
8. If people hadn't invented different machines and developed industry, the … problems wouldn't have appeared.
9. Why is litter so … in the countryside?
10. When you buy packed goods, don't drop the … .