Water Quality Physical Indicators

Macroinvertebrates such as stoneflies, mayflies and water boatmen require high levels of dissolved oxygen and their abundance is an indication of:

• Poor water quality
• Good water quality
• Don't tell us anything about water quality
• Invertibrates don't tell us anything about water quality

High turbidity and total suspended solids means high quality water

• true
• false

What type of pH value would be toxic to aquatic organisms?

• pH = 7

• pH = 7.5

• pH = 5

• pH = 6.5

Tags

NGSS.MS-LS2-4

What could cause water temperature to increase?

• Cold winter months
• Increased Dissolved Oxygen
• Pollution such as sediment in the water
• Shade from trees along riparian zones

Tags

NGSS.MS-ESS3-4

NGSS.MS-PS3-4

Higher salinity means lower water quality

• True

• False

Tags

NGSS.MS-ESS2-4

What two agriculture nutrients cause the greatest problems in surface waters? (lead to algae growth and depleted O₂)

• oxygen and nitrogen

• nitrogen and phosphorus

• hydrogen and nitrogen

• helium and phosphorus

How does fecal coliform bacteria get into the water (e. coli)?

• soil erosion
• burning fossil fuels
• human and animal waste
• waste water from factories

Tags

NGSS.MS-ESS3-4

What metals are potentially toxic to humans and aquatic life?

• lead, mercury and copper

• hydrogen, titanium and gold

• potassium, oxygen and manganese

• zinc, calcium and magnesium

Tags

NGSS.MS-LS2-4