Biology, 20.01.2021 18:00 1232444553
Scientists in Chicago measure the amount of oxygen and carbon dioxide in Lake Michigan. This helps them determine the health of the lake ecosystem. In July, scientists noticed a large decrease in oxygen levels in the lake. The decrease in oxygen could be due to:
a) A decrease in fish populations.
b) A decrease in plant growth.
c) An increase in plant growth.
d) An increase in rain water supplied to the lake.
Answers: 1
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Scientists in Chicago measure the amount of oxygen and carbon dioxide in Lake Michigan. This helps t...
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