Water Quality and Stewardship Reviewer

How can too much rainfall in the mountains affect the turbidity of the river downstream?

• It can decrease the turbidity of the river downstream.

• It can increase the turbidity of the river downstream.

• There is no significant effect on the turbidity of the river downstream.

Tags

NGSS.MS-ESS2-4

Which of the following can have the greatest effect on the water quality of river?

• salinity and temperature

• type of soil and fish population

• nitrates level and turbidity

• natural disasters like flooding

A body of water that has HIGH turbidity is ___________.

• safe to drink

• unsafe to drink

• highly potable

• has low pH level

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

Why is the turbidity in lake higher near the shoreline?

• because of increase in erosion rate

• because of increase in eutrophication

• because there is less water near the shoreline

• because the temperature is colder near the shoreline

Tags

NGSS.MS-LS2-1

What is the pH of pure water?

• 0

• 5

• 7

• 14

The presence of bioindicators tells a lot about the water quality. Which factor is usually measured by bioindicators?

• turbidity

• dissolved oxygen

• light

• water depth

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

How does acid rain affect the pH of a stream?

• it increase the pH of the stream

• it lowers the pH of the stream

• it has no significant effect on the pH of the stream

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

Which is an example of a point source of pollution?

• a pipe from a sewerage system

• water runoff from the street

• fertilizer sprayed on soil