1) What does Ecology deal with?
2) What do recent research data confirm?
3) What does man like any other living organism depend on?
4) What is the biosphere strongly affected by?
5) What causes ecological disturbance?
6) Why do more and more people suffer from different diseases?
7) What is the most essential source for the survival of human beings, animals, plants and the planet as a whole?
8) What changes flora and fauna?
9) What does every car consume?
10) What does noise do?
11) What reduces work efficiency?
12) What do governments in many countries do to make the planet a healthy place to live on?