Quote:
Originally Posted by A Zeee
There are only 4 primary layers of atmosphere according to many books and encyclopedias. However, some books have written 5 layers. Ionosphere is not a separate layer. Primary was not written in Q but the closest correct was 4 layers.
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Alright! But since they haven’t asked about the primary division so there is no reason to ignore exosphere and ionosphere. These are not primary but still are known region.
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