从这些研究中，科学家们得出结论，海洋覆盖着原始地球的表面，其中含有构成生命的基本分子。
From these studies, scientists have concluded that the surface of the primitive Earth was covered with oceans containing the molecules fundamental to life.
海洋就像地球的温度计，温度升高，海平面就像温度计中的水银一样上涨。
Acting as the earth's heat sink, the oceans expand like the mercury in a thermometer.
这样在海洋表面的碳酸盐的沉积物通过板块构造返回地球中。
This makes carbonate sediments on the floor of the ocean that are subducted back into the Earth though plate tectonics.
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