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chemosphere
che·mo·sphere
[
kmə sfr
]
noun
Definition:
region of Earth's atmosphere:
a variable region of the atmosphere, approximately 30 to 190 km (20 to 120 mi) above the Earth's surface, where photochemical reactions take place
che·mo·spher·ic
[
kmə sférrik
]
adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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