1. Done by: > Carmen > Aroa > Irene > Raquel

2. * Water Pollution * Introduction -Inexhaustible -50% not purified Pollution by Bacterias and Viruses -2 principal ideas -Pathogenic microorganisms -Solutions Pollutants and Chemical products -Some pollutants -Ways of polluting bodies of water -Chemical products Warm Water -Where does warm water come? -Thermal pollution -Solutions

3. Clean Water K ill the bacterias and viruses in water Solutions: -Purify water by putting chlorine in it.

8. Such as: - Acids - Salts - Toxic metals ACID S salts Toxic m. Solutions: - Use methods of prevention and also of control for clean the water

9. They’re taking or putting water from/to the sea by using it in a factory. This produces theraml pollution because they take cold water and put warm or hot water.