sorry I couldn’t add more. I passed the pretest. |
Here’s what i got. it gave me 100%. |
Which of the following factors determines how harmful an introduced chemical will be on the environment? |
d. all of the above |
Nonpoint source pollution is difficult to control because it _______. |
b. comes from a variety of sources |
The principle difference between point source and nonpoint source water pollution is _______. |
b. the number of sources of pollution |
Point source pollution is much more difficult to track and clean up than nonpoint source pollution. |
F. false |
Which of the following best describes the effects of water pollution on aquatic ecosystems? |
d. All of the above |
Changing your toilet can reduce water pollution because _______. |
d. more efficient plumbing uses less water and creates smaller volumes of waste |
How does de-icing roads with salt negatively impact the environment? |
c. The high salinity of the surface runoff is harmful to freshwater ecosystems. |
Which of the following is true concerning sources of water pollution? |
a. Mine wastes and heavy metals become water pollution through storm water runoff. |
Which of the following is the most serious effect of water pollution for humans? |
a. infectious diseases |
Introduced sewage in water systems _______. |
c. increases concentrations of solids |
Water Pollution pretest
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