Complete the sentences with the new words. 1. people throw too much . . 2. should play an important part in modern politics. 3. the smoke in the forest and it was hard to breathe. . 5. all people must protect the— , only in this case it ii he 6. —— power brings more harm than good 7. more and more unique animals —---— every year 8. people-— a lot of energy. 4. most of our food means for zoo animals .