Composition and Structure of Atmosphere
Jharkhand Board · Class 11 · Geography
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Quick Quiz: Composition and Structure of Atmosphere
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What percentage of the total atmospheric mass is confined within 32 km from the earth's surface?
In which atmospheric layer is the ozone layer located?
At what rate does temperature decrease in the troposphere?
Which gas is transparent to incoming solar radiation but opaque to outgoing terrestrial radiation?
Sample Questions
In which atmospheric layer are radio waves reflected back to Earth?
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Ionosphere
The ionosphere, located between 80 and 400 km above the mesopause, contains electrically charged particles that reflect radio waves back to Earth.
What is the average height of the troposphere?
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13 km
The reference document states that the average height of the troposphere is 13 km, though it varies between 8 km near the poles and 18 km at the equator.
Where is the highest concentration of dust particles typically found?
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Subtropical and temperate regions
The text indicates that dust particles have higher concentration in subtropical and temperate regions due to dry winds.
What is the temperature at the tropopause over the equator?
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-80°C
The reference document specifically states that the air temperature at the tropopause is about minus 80°C over the equator.
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