2. AIR POLLUTION WATER POLLUTION SOLID WASTES ACUSTIC POLLUTION

4. POLLUTION

5. Air Pollution

6. What’s the causes of air pollution? Air pollution can be caused by: natural and human factors

8. Air pollution may cause irreversible damage to humans and to our environment.

9. Water has an important role in large rivers. They allow a large soil fertility and ease of trasportation. Water is also very important for humans, plants and animals…

10. MANY KIND OF FISHES LIVE IN THE SEA

11. As the water is very important for living beings, we must not pollute it with our waste: papers, plastics and chemicals.