Water Quality Review

What is salinity?

• The property of containing salt

• The amount of suspended solids

• Describes the condition of the water

• Describes how acidic or basic water is

Why are too many nutrients (like nitrates and phosphates) bad for our waters?

• Nutrients decrease the pH of the water, causing it to become increasingly acidic

• Nutrients change the salinity of the water

• Wetlands filter out runoff that may contain nutrients

• Nutrients in the water cause too much algae growth, which decrease the level of oxygen in the water

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

What is pH?

• The property of containing salt

• The measure of the amount of oxygen that is dissolved in water

• The amount of suspended solids in water

• The measurement of the acidity or basicity of water

A body of water showed a high turbidity level, high levels of nitrates and phosphates, a pH of 7.5, and low dissolved oxygen levels. Would this body of water be considered healthy?

• Yes

• No

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is a bio-indicator?

• any living creature

• eutrophication

• An organism sensitive to its environment

• a turbidity tube

What is the healthiest combination listed?

• low pH, high nitrates, neutral temperature
• low temperature, neutral pH and low nitrates
• as many nitrates as possible, low temp and low pH
• high temp, high nitrates and high pH

Tags

NGSS.MS-LS1-5

What is the end result of eutrophication?

• More algae
• decreased oxygen and fish kills
• less turbidity
• a new pond

Tags

NGSS.MS-LS2-4

Potable water is water that is ______________.

• polluted

• safe to drink

• biological

Which of these is a possible location for point-source pollution?

• a large urban area

• a factory

• a mountain area

• a desert biome

What are the sources of nitrates in drinking water?

• Septic tank leaks, Human and animal waste, Cleaning and industrial waste

• Septic tank leaks, Laundry, Cleaning and industrial waste

• Runoff contaminated with fertilizers, Sewage, Human and animal waste

• Runoff contaminated with fertilizers, Sewage, Laundry