Water Quality

the amount of solid particles suspended in the water is

• turbidity
• alkalinity
• solubility
• pH

Which is an effect of chlorine in water?

• kills the microorganisms
• improves the taste
• aerates the water

mixture of fresh and salt water

• Brackish water
• Estuary
• Turbid
• Freshwater

pollution from a definable source

• Pollutant
• Pollution
• Non-point Source Pollution
• Point Source Pollution

particles that accumulate on the bottom of a waterway

• Rocks
• Sediment
• Nitrogen
• Turbidity

an area of land that is drained by a specified river or other body of water

• Marsh
• Estuary
• Watershed
• Tidal Pool

In water treatment, chemicals area added so that dirt and solid particles stick together, called _________, so that they can be easily removed.

• scum
• sludge
• floc
• residuals

Why do biologists use indicator species?

• to compare freshwater and ocean ecosystems
• to count the number of organisms present
• to monitor water quality and biodiversity
• to analyze the dominant species

A recreational lake experience eutrophication because of excess nutrients.  Based on this information, how would the recreational lake most likely appear?

• clear and blue
• oily and greasy
• murky and full of algae
• orange and rust-colored

Most groundwater withdrawn in the United States is used for ________ .

• Industry
• Agriculture
• Recreation
• Human Consumption