Chapter+3+essay+question

1. Companies could filter out pollutants, cool the water,alternate disposal, Do not bury chemicals near water sources, Do not use water.

Reuse, Reduce and Recycle.

2. Make sure water is clean and safe to drink

1st filtration- gets out big stuff

Coagulation- Add alum to produce flocs

2nd filtration/ settling basins - getting more trash small particles out

Chloration - kill germs

Aeration - pump into air to get smells out

Additional treatments - add sodium/ lime

3. More nutrients and fertilizers into ponds.

Pesticides kill insects near water which disrupts food chain Overabundant growth

Eutrophication-greater # of dead plants at bottom

4. PCB pollutants increase build up with each level. Each larger animal comsumes a great# of the smaller organism and more pollutants. (p 116 in book)

5. PBC's Birth defects in humans

Cancer

Skin irriatation if swim in infected water or bathing

Builds up in bodies

6. Too little water - great demand-not enough water to be replaced NO RAIN = DROUGHT

7.Factories burn fossil fuels that release sulfur dioxide and nitrates into the air. They mix with water in atmosphere to form sulfric acid and Nitric acid. Acid rain is below 7 on the pH scale. Acid dissolves buildings, stone and kills trees. Animals food sources and destroy habitat.

8. Water stored behind the dam (has potential energy). As it moves over the dam or through it gravity pulls it making kinetic energy. The moving water turn turbines. Turbine creates energy which is stored in the generator. Then the generator sends the electricity through wires out to homes.