Which is a correctly matched pair
1) Mesosphere - hotest region in atmosphere
2) Thermosphere - coldest region in atmosphere
3) Exosphere - atomic & ionic 0, H & He
4) Stratosphere - ionosphere
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Answer:
3 is the ans ok thankkkkkkkk youuuuuuuuuuu yessssss
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Explanation:
3) Exosphere atomic and ionic O H He
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