1.

Explain the main layer of gases in heterosphere​

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Answer:

The major constituents of Earth's heterosphere are nitrogen, oxygen, helium, and hydrogen. Nitrogen and oxygen compose the lower PORTION of the heterosphere. In the higher LEVELS of the heterosphere, above about 1,000 km, helium and hydrogen are the dominant species present. ... These include O+, NO+, O2+, and N2+.



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