why earth is called biosphere
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The biosphere is the layer of the planet Earth where life exists
Since life exists on Earth it is called a Biosphere
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The biosphere, (from Greek bios = life, sphaira, sphere) is the layer of the planet Earth where life exists. ... The Earth's water—on the surface, in the ground, and in the air—makes up the hydrosphere. Since life exists on the ground, in the air, and in the water, the biosphere overlaps all these spheres.
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