Choose a suitable word from the box to put in each blank to finish the passage.
from, means, in, waste, possible, wind, should, green, However, who
Much of our waste, especially waste (1).......... factories, electric-powered stations, the chemical industry and heavy industry, is very dangerous. Fish die (2).......... the lakes, rives and seas; forest trees die, too. Much of this dangerous (3)........... goes into the air and is carried by the (4)......... for great distances.
The Earth is our home. We (5).......... take care of it, for ourselves, and for our children and grandchildren. This (6).......... we have to keep our environment (7).......... and clean. The important of this task is pointed out by ecologists-the scientists (8)........... study the relations between living things and the environment. (9)............, each of us must do everything (10)........... to keep the land, air and water clean.
1.from
2.in
3.waste
4.wind
5.should
6.means
7.green
8.who
9.However
10.possible
