Biogeochemical cycles _______.
a.
are not essential for life
b.
move through abiotic and biotic regions
c.
are the result of natural disasters
d.
provide the greatest amount of energy for the Earth
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Asked 6/29/2016 10:02:51 AM
Updated 6/29/2016 11:46:47 AM
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jeifunk [6/29/2016 11:46:46 AM]
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