When dense seawater sinks below lighter fresh water we observe a condition called:

a. downwelling.
b. salt wedge.
c. tidal overmixing.
d. upwelling.
e. convection current.


C

Biology & Microbiology

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Indicate whether the statement is true or false

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Macromolecules that are used by most organisms to store hereditary information are called:

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