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Answer:

The primary chemical constituents of the hydrosphere are oxygen (85.5 per cent) and hydrogen (10.7 per cent), which form the water molecule. The other most important constituents by weight include chlorine (2.1 per cent), sodium (1.1 per cent), magnesium (0.14 per cent), and numerous other elements in small amounts

Explanation:

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Answer:

Hydrosphere is the total mass of water found on the surface of the Earth. Its components include ice sheets found in the mountainous regions and all the water bodies such as lakes, ponds, rivers, seas, oceans, underground water and the water vapour present in atmosphere.

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