8.E.1.3/1.4 Test Recovery

Front

The measure of how clear or cloudy a substance is

Back

Turbidity

Front

the measure of how acidic or basic a substance is

Back

pH

Front

Bio-indicators

Back

An organism used to monitor the health of an ecosystem.

Front

Which BEST determines the health of a lake used as a source of freshwater? Options: its depth and width, its temperature and pH, its location and depth, its temperature and depth

Back

its temperature and pH

Front

If a body of water has high turbidity levels, what can MOST LIKELY be concluded?

Back

It is unsafe to drink

Front

Point source pollution is more easily controlled. Why?

Back

They come from a single, identified source.

Front

What water quality indicator is affected the most by changing water temperature? Options: bioindicators, nutrients, dissolved oxygen, turbidity

Back

dissolved oxygen

Front

A high concentration of phosphates and nitrates is found in samples of a pond. Which is most likely the source?

Back

runoff from agricultural fields

Front

How do nitrate levels affect the health of a water system?

Back

nitrates cause aquatic organisms to die due to oxygen depletion

Front

Why is it important to monitor turbidity levels of a water system?

Back

Suspended particles diffuse sunlight and absorb too much heat.