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Directions:  Choose the best answer for each of the following questions.  After clicking on your answer choice, you will immediately be informed if you picked the correct answer.  Then you must click the "Continue" button or close the pop-up window, and proceed to the next question.  Your score is dynamically tabulated at the bottom of this page.

1.  An excess of fertilizers which contain Nitrogen (N), Phosphorus (P), and Potassium (K) can cause:

A.  Magnificent flowers to grow along the waters edge
B.  Animals to grow at alarming rates
C.  Eutrophication
D.  Toxification

2.  Scientists measure the amount of salt in the water (salinity) in:

A.  ppt = parts per ton
B.  ppt = parts per thousand
C.  ppm = parts per million
D.  gpb = grains per bucket

3.  If you found 3 ppm of D.O. when testing the water, which of the following did you find?

    A.  3 parts per million of dirty oxygen
    B.  3 parts per million of dissolved oxygen
    C.  3 parts per million of digested organisms
    D.  3 parts per micron of diluted oxides

4.  Producers such as phytoplankton provide which of the following?

    A.  Nutrient loading
    B.  Carbon dioxide
    C.  carbon monoxide
    D.  dissolved oxygen

5.  The Chesapeake Bay has:

A.  Fresh water
B.  Salty water
C.  Murky water
D.  Brackish water

6.  The pH of the bay water is slightly basic.

A.  True
B.  False


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