Нужно составить предложения из слов:
from (on) pollution
protection of
protective clothing

chenical waste/waste paper
It s a waste of time

to be polluted by

air pollution/sea pollution
antipollution laws

to protect the enviroment
the pollution of the
environment
environmental problems/research

The green peace tries to protect our Earth from pollution.The protection of our Earth is a very important problem.We use protective clothing in our factory.We have a lot of waste paperIt s a waste of time to go thereThis town is  polluted by factories.

We disscussed the problems of air pollution and sea pollutionWe must think about antipollution lawsIt is necessary to protect the enviromentthe pollution of Moscow is very highWe must clean up the environmentThey disscussed a report about environmental problems.