Week 3

Question 1

What is water pollution?

Answer 1

The introduction of pollutants into water bodies that after the quality and has harmful effect on living organisms or make water unsuitable for the desired uses

Question 2

What is a a point source of pollution?

Answer 2

Contamination discharged from specific origin and identifiable sources

Question 3

What is a non point source of pollution?

Answer 3

Contamination from diffuse sources over a broad area

Question 4

What causes sediment pollution?

Answer 4

Suspended solids in water

Question 5

What are natural causes of sediment pollution?

Answer 5

Soil erosion, storm, weathering

Question 6

What are anthropogenic causes of sediment pollution?

Answer 6

Erosion of agricultural lands, logging, over grazing, strip mines, construction

Question 7

What causes color in water?

Answer 7

Dissolved organic carbon and natural organic matter

Question 8

What are some dissolved substances in water?

Answer 8

Minerals, natural organic matter, nutrients and oxygen

Question 9

Why is high levels of suspended solids bad?

Answer 9

Increases water temperature and decreases dissolved oxygen levels

Question 10

How do suspended solids effect water chemistry?

Answer 10

Suspended particles absorb mor heat from solar radiation than water molecules. Warmer water can not hold as much DO as cold water.