Ch 19 Guiding Questions

19-1 1) What are the major types and effects of water pollutants? Please complete the following table:

Type of Pollution	Examples	Sources	Harmful Effects

2) What are four indicators of water quality?

3) Compare and contrast POINT and NONPOINT SOURCES of water pollution. Give examples of each.

4) Does global warming have any connection to water pollution in the future?

19-2 5) Discuss factors that determine how quickly a stream can "take care of" pollution that is dumped into it.

6) What effect would requiring cities to withdraw their drinking water downstream have on river water quality? Why?

7) What progress has been made on cleaning up streams and rivers over the last 50 years?

8) What challenges still face us in continuing the fight against river and stream water pollution?

19-3 9) Lake and pond pollution differs from stream pollution. What are the special challenges of lakes and ponds that are different from rivers and streams?

10) To review, what is an OLIGOTROPHIC LAKE and a EUTROPHIC LAKE? Relate this to the concept of CULTURAL EUTROPHICATION.

11) What needs to be done to decrease or eliminate cultural eutrophication?

19-4 12) Groundwater is a major source of drinking water for us here in Corona. In fact, our 51% water coming from aquifers is also the national average for the U.S. What substances are contaminating a large percentage of our national drinking water? How are they entering?

13) Why is cleaning up groundwater pollution nearly impossible compared to cleaning streams, rivers, and lakes (special challenges)?

14) What measures can be taken to protect groundwater from being polluted?