Composition and Structure of the Atmosphere — Geography STD 7 — Question
ICSE BoardEnglish MediumSTD 7GeographyComposition and Structure of the Atmosphere2 Marks
Question
What is the troposphere?
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Answer
Troposphere is the lowest layer of the atmosphere. It protects us from the heat of sun during day and keeps the earth warm at night ozone. This is the densest layer of the atmosphere and its thickness varies from 8 km over the poles to 18 km over the equator.
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