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Air — Social Studies STD 7 — Question

CBSE BoardEnglish MediumSTD 7Social StudiesAir3 Marks
Question
Briefly write about thermosphere?
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Answer

Thermosphere:
  • In thermosphere temperature rises very rapidly with increasing height.
  • Ionosphere is a part of this layer.
  • It extends between 80 and 400km.
  • This layer helps in radio transmission.
  • Radio waves transmitted from the earth are reflected back to the earth by this layer.

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