Подставьте слова вместо пустых мест This text introduces you ________ the problem of enironment. Now we also have _____

This text introduces you to the problem of environment. Now we also have before us the same problem. Natural resources are used for purposes of home industry and agriculture. The wide use of natural resources upsets the biological balance. The people are faced with the problem of the pollution. We all should try to do our best in order to make air/forsets and soil cleaner than before.