Exercise 13. Underline the subject and the predicate of the sentences and put possible questions to all members of the sentence

1. Human civilization can inevitably perish as a result of the depletion of non-renewable natural resources. 2. The solution of the environmental problem is interpreted as the protection of nature primarily against pollution. 3. Pollution is caused by economic and demographic growth. 4. The optimization of the interaction between nature and society has ensured mankind's social and economic progress.

Exercise 14. Complete the sentences.

Some countries regard environmental protection as....

An important component of solving socio-economic problems is....

Other countries regard environmental protection as steadily....

The rational utilization of resources and the conservation of nature are...

The problems concerning the interaction of man and nature are....

The pollution of the Ocean by one particular country affects....

Pollutants coming from industrial centres in Germany and France filter down....

8. The problem of "Man and the Biosphere" must be solved by the efforts of all countries by means of....

Exercise 15. Put the sentences in the correct grammatical form. 1. The problem of solution of pressing global problems can (to solve) by the efforts of all countries. 2. The rational utilization of resources (to be) a matter of general state policy in these countries. 3. The pollution of the Ocean by different countries already (to affect) fishing in many countries, often very far away. 4. Pollutants usually (to come) from industrial centres in Germany, Belgium and France. 5. Pollutants (to filter down) in Eastern Europe and (to affect) forests and fish in ponds and lakes there in late 1990s.