Thermal pollution

Question 1

Sources

Answer 1

-power stations
-as use hot water to cool and condense steam to release back into environment

Question 2

effects

Answer 2

-hot water has less ability to hold dissolved oxygen as o2 comes out of solution, less o2 available for aerobic respiration
-diff temps can trigger diff parts of life cycle at wrong time
-denture enzymes
-organisms pushed outside range of tolerance

Question 3

ways to cool water down

Answer 3

-put water into large body of water to allow it do spread out
-put into ponds (cooling ponds)

Question 4

cooling towers

Answer 4

-hot water goes through sprays, increasing the surface area of water which heat transfers to surrounding air
-the hot air then rises and cold air from environment is pulled up and replaces it

Question 5

Forced draft cooling system

Answer 5

-forces cold air into cooling systems
-requires energy
-not as big as cooling towers
-smaller
-faster