Hydrosphere Unit Test

Caddisfly larva is known to be present in mountain streams and is sensitive to pollutants. Which is the best description for the use caddisfly larva in water quality testing?

• bioindicators

• endangered species

• invasive species

• nitrates

The chart shows the number of organisms that were counted in a stream at certain temperatures. Which temperature is most likely optimal for the health of river organisms?

• 82°F

• 84°F

• 86°F

• 88°F

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

How can farmers most negatively affect the quality of a water source?

• They can deplete the water of nutrients

• They can overuse fertilizers and insecticides

• They can decrease weathering and erosion of soil

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Which is likely true of a lake with high turbidity levels?

• The lake has low pH levels

• The lake has few life-forms

• The lake has high levels of oxygen

Tags

NGSS.MS-LS2-4

Select the correct order for the water treatment process.

• Sedimentation - Chlorination - Filtration

• Sedimentation - Filtration - Chlorination

• Filtration - Chlorination - Sedimentation

• Filtration - Sedimentation - Chlorination

Tags

NGSS.MS-PS1-5

The chart below shows the pH of a river over a four-day period.

On which day was the water most acidic?

• Day 1

• Day 2

• Day 3

• Day 4

Tags

NGSS.MS-PS1-2

improved water quality can be achieved by

• appropriate use of water

• careful water storage and handling

• proper land management

• all of the above

Which of the following indicators can be best used to determine whether the lake can be a good source of freshwater?

• depth and width

• depth and temperature

• location and depth

• temperature and pH

Which might cause scientists to be concerned about the quality of lake water?

• low levels of salt

• low levels of arsenic

• high levels of nitrates

• high levels of oxygen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which ocean water temperature change is most dangerous for aquatic wildlife?

• 5 degree C to 10 C

• 15 degrees C to 20 C

• 25 degrees C to 30 C

• 35 degrees C or higher

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4