Question

what is heterosphere

Answer 1

Hey mate here is your answer

The heterosphere is the upper portion of the Earth's atmosphere, in which gases are fractionated according to their molecular weight. It lies above the homosphere, where chemical constituents are well mixed. On average the heterosphere begins at an altitude of about 80 km.

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Answer 2

all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.