Water & Air Pollution

Which of the following are the TWO underlying causes of water pollution?

• Rapid population growth

• Burning of fossil fuels

• Discharging hot water into freshwater rivers and lakes

• Industrialization

Can be traced back to the point of origin.

• Point Source Pollution

• Non-point source pollution

Tags

NGSS.HS-ESS2-2

Cannot easily be traced to the source of the pollution.

• Point Source Pollution

• Non-point source pollution

Sewage leaking from a pipe.

• Point Source Pollution

• Non-point source pollution

Tags

NGSS.MS-ESS3-3

Fertilizer farm runoff

• Point Source Pollution

• Non-point source pollution

Tags

NGSS.MS-ESS3-3

Water that contains the waste from homes or industry.

Eutrophication is caused by

• excess nutrients building up in the water.

• industrial point-source pollution.

• unlined landfills and septic tanks.

• wastewater from homes mixing with drinking water.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

How does eutrophication cause the death of aquatic organisms

• the build up of carbon dioxide in the water

• the lack of nitrogen in the water

• the lack of carbon dioxide in the water

• the lack of oxygen in the water

Tags

NGSS.MS-LS2-4

The two critical nutrients in eutrophication are... (select two)

• nitrates

• phosphates

• carbon dioxide

• dissolved oxygen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In eutrophication, dissolved oxygen levels decrease because

• bacteria use it as they decompose organic material

• algae uses it during photosynthesis

• it reacts with hydrogen to form H2O (water)

• fish use it up as they consume algae

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4