The Hydrosphere
Answer Text: b) The Hydrosphere • Part of the earth’s surface covered by water masses e.g. oceans, seas, lakes, rivers and even underground water. • It comprises 73% of the earth’s surface area. • The atmosphere and hydrosphere are related in that atmospheric gases penetrate to the ocean depth in solution form. • The lower atmosphere, hydrosphere and the upper part of the earth’s crust are called biosphere meaning the sphere of the earth in which organic life exists.
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