1. The forest protects the Earth from erosion, prevents evaporation.
2. Under the branches of higher trees, there are lower trees and then — grass, mushrooms, etc.
3. When man breathes, he consumes air containing oxygen and gives out air containing carbonic gas.
4. During the photosynthesis carbonic gas turns into oxygen.
5. In his activity, man needed timber for building and warming his home and fields for growing crops.
6. Recently scientists have found out that ecological crises happened in ancient times.
7. If the forest is destroyed because of commercial interests, there will be little water and the erosion will start on the slopes.
8. Our country protects forests: in 1942 the so-called ‘forests of the first group’ were created.
9. Because of people forest fires take place and it will take one hundred years to grow the similar forest on the same place.
10. Only if we take care of Earth, people who’ll live after us will have a clean planet, fit for healthy living.
