WATER ENVIRONMENT

2. A non-potable water is contaminated with ___that includes particles from dirt, toxic metals or bacteria that cause cholera
3. In the 1980s, devastating drought occurred in this country which resulted in catastrophic crop failures and starvation.
6. These are organisms that use the organic substances produced by autotrophic organisms as energy sources and as raw materials for the synthesis of their own biomass.
9. Surface runoff is when water runs ___ the ground into streams and rivers.
10. It is a branch of science dealing with the characteristics of fresh water including biological properties, as well as chemical and physical properties.

1. It is when the water moves laterally below the ground.
4. Higher latent heat of fusion than any other liquid except ___.
5. STRATIFICATION During the summer a surface layer (epilimnion) is heated by solar radiation and, because of its lower density, floats upon the bottom layer, or hypolimnion. This phenomenon is called _____________.
7. Include polychlorinated biphenyls, commonly used pesticides such as atrazine and other triazine chemicals, and phthalates
8. Groundwater has low or no ___.