Water Quality

This bacteria when found in water is a strong indicator of contamination

• Fecal coliform

• Non pathogenic bacteria

• Phytoplanktons

• Micro Planktons

Alkalinity is important for fish and aquatic life because it protects or buffers against rapid pH changes.

• True

• False

Tags

NGSS.MS-LS2-4

Measuring the salinity of water is important for assessing density of water bodies

• True

• False

Tags

NGSS.HS-ESS2-5

Which is a true statement of the diagram above?

• As temperature increases dissolved oxygen increases

• As temperature decreases dissolved oxygen decreases

• As temperature increases dissolved oxygen decreases

• Noe of the above

Water-quality monitoring using indicators cannot alert us to current, ongoing, and emerging problems

• True

• False

This is the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic conditions

• Chemical oxygen demand

• Biochemical oxygen demand

• Turbidity

• Dissolved oxygen

A test to determine a physical characteristic that can determine the rate of biochemical reactions in an aquatic environment.

• Nitrates

• Calcites

• Temperature

• Ions

Tags

NGSS.MS-PS3-4

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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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

• pH = 7

• pH = 7.5

• pH = 5

• pH = 6.5

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Water with high turbidity 

• is cloudy and hard to see through

• is clear

Tags

NGSS.MS-LS2-3