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 paper
It s a waste of time to go there
This town is polluted by factories.
We disscussed the problems of air pollution and sea pollution
We must think about antipollution laws
It is necessary to protect the enviroment
the pollution of Moscow is very high
We must clean up the environment
They disscussed a report about environmental problems.