how is human life dependent upon the oceans
Answers
Life itself arose from the oceans. The ocean is vast, covering 140 million square miles, some 72 per cent of the earth's surface. Climate and weather, even the quality of the air people breathe, depend in great measure on an interplay between the ocean and the atmosphere in ways still not fully understood.
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Oceans are the lifeblood of planet Earth and humankind. They flow over nearly three-quarters of our planet, and hold 97% of the planet's water. They produce more than half of the oxygen in the atmosphere, and absorb the most carbon from it.
Ocean plankton produces most of the oxygen needed for life on earth. ... The fresh water that we need to live comes primarily from the oceans. When ocean water evaporates, the salt and other minerals are left behind and the water vapor content of the air increases.
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