Water Quality

How much of the Earth's water supply is saltwater?

• 1%

• 5%

• 2%

• 97%

What percentage of the Earth's water is available for our daily needs?

• 97%

• 1%

• 25%

• 10%

Tags

NGSS.MS-ESS3-1

What is a major problem caused by sediment in waterways?

• It blocks sunlight affecting aquatic life

• It makes water taste better

• It purifies the water

• It increases water temperature

Tags

NGSS.MS-LS2-4

What are nutrients like nitrogen and phosphorus known to cause in water bodies?

• Reduction of aquatic life

• Decrease in water temperature

• Algae blooms

• Enhancement of water clarity

Tags

NGSS.MS-LS2-3

What is the primary concern with nitrates in drinking water?

• It can cause blue baby syndrome

• It makes the water salty

• It decreases water pH

• It increases water hardness

Tags

NGSS.HS-ESS2-5

What is the main source of pathogens in water?

• Industrial waste

• Human sewage and raw animal waste

• Agricultural runoff

• Urban runoff

What is the primary way water pollutants are categorized?

• By their chemical composition

• By their color

• By their effect on human health

• By their source: point and non-point sources

What approach is used to frame individual pieces of a specific water quality problem?

• The legislative approach

• The watershed approach

• The chemical analysis approach

• The biological assessment approach

What is a significant impact of urban areas on water quality?

• Improved water filtration

• Increased water absorption

• Decreased pollutant runoff

• Increased pollutant runoff

What is a major environmental concern with large animal confinements?

• Air freshness

• Manure management

• Decreased land usage

• Noise pollution