The answer is c. coccolithophore is a unicellular, eukaryotic phytoplankton
It because they give us oxygen and without oxygen we would all die from oxygen deprivation.
the process that gives us oxygen is photosynthesis
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The answer is A, earthquake. Typically, tsunamis can form after an earthquake. This happened in Indonesia a couple of times. I hope this helped! :-)
Biogenous sediment is sediment created from the shells of organisms that were once alive. These shells contain substances such as calcium, silicon and phosphorus. However, these shells do not contain manganese. Therefore, the answer is A. manganese nodules.
