Human Impacts & Water Quality

Most water pollution is the result of __________________.

• natural processes
• animal waste
• human activities
• acid rain

What is the purpose of a dam?

• To stop water from flowing

• To create a reservoir to be used for drinking, irrigation and electricity

• For people to come visit

• To make water flow

We can prevent water pollution by:

• Reduce the use of plastic.

• Properly dispose of chemicals.

• Clean up after your animals.

• All of the above

TRUE or FALSE. Many people on Earth do not have accces to clean water.

• TRUE
• FALSE

Pollution traced to a single point

• water shed

• permeable

• point source pollution

• non-point source pollution

Pollution that cannot be traced to a single point because comes from many sources

• estuary

• water shed

• non point source pollution

• point source pollution

What is salt water intrusion?

• Contamination of well and drinking water

• Movement of saline water into a freshwater aquifer

• When salt water is not evenly distributed into groundwater

• When salt water restricts the flow of freshwater

Of the 17 rivers basins in NC, how many empty into the Atlantic Ocean?

• 17

• 11

• 4

• 0

As human population increases exponentially what is likely to happen to the amount of available freshwater?

• It will increase

• It will decrease

• It will stabilize

• It will increase then decrease

What does the biotic index measure?

• Amount of pollution

• pH of the water

• Water quality

• Amount of dissolved oxygen