The ___________________ _ is the liquid structural layer of Earth.
Fill in the blank(s) with correct word
Question 2
Why might the abundance of marine diatoms be related to increased volcanism?
A)Volcanic activity resulted in decreased sunlight, which affected the growth of all marine phytoplankton except diatoms.
B)Volcanic activity may have resulted in the increase in silica in seawater.
C)Increased volcanic activity warmed sea water, creating a favorable habitat for diatoms.
D)Increased volcanism caused cooling of sea water, which created optimal conditions for diatom growth.
E)Increased volcanism created new ecological habitats for diatoms.
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