<span>Seamounts form by submarine volcanism. After repeated eruptions, the volcano builds upwards into shallower water. If a seamount eventually breaches the water's surface, it becomes an island. ... They may form in groups or clusters, or can be found aligned in submarine volcanic mountain chains known as oceanic ridges.</span>
Answer:
Melting would have caused denser substances to sink toward the center while less-dense materials would have migrated to the crust.
Explanation:
Answer: The release of methane from thawed permafrost
Explanation:
With increasing global warming, permafrost in the arctic is melting. The carbon and methyl clathrates present in permafrost escape into the atmosphere to form carbon dioxide and methane, both greenhouse gases.
In the Arctic, molecules of methane are trapped in ice crystals as methyl clathrates. When the temperature increases, these crystals release methyl clathrates which become methane when in contact with the atmosphere.
The cause of the increasing atmospheric is due to the the thawing of dead organisms present in the permafrost. As the permafrost melts, these organisms decay and release into the atmosphere.
Coastal areas are cooler and than inland areas