Water Lesson

Water Pollution

Multiple Choice

________children die every day from diseases associated with unsafe drinking water.

• 4,500

• 3,800

• 6,800

Multiple Choice

_________is pollution from a distinct location, like a factory or sewer pipe.

• Point-source pollution

• Non-Point-source pollution

Multiple Choice

when snow-melt runoff picks up pollutants along its path, this an example for

• Point-source pollution

• Non-Point-source pollution

Open Ended

List one source of eutrophication

Multiple Choice

In the process of eutrophication, dissolved oxygen levels decrease in water bodies because of ______

• Decomposition of dead organisms

• Evaporation

• Drought

Open Ended

List 2 sources(causes) of toxic-chemical pollution

Multiple Choice

One example of petroleum products is __________

• Pesticides

• Plastic

• Heavy metals

Open Ended

List 2 sources(causes) of toxic-chemical pollution

Open Ended

Why is sediment pollution dangerous to an aquatic ecosystem?

Open Ended

Can sediment pollution have an impact on humans too?

Multiple Choice

Water thermal pollution means

• Water pollution due to the decrease of water temperature

• Water pollution due to the increase of water temperature

• Water pollution due to the increase of water salt content