Composition and Structure of Atmosphere — Practice Quiz
CBSE · Class 11 · Geography
Try a 4-question quiz on Composition and Structure of Atmosphere for CBSE Class 11 Geography: tap an answer to check it and see why.
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Quick Quiz: Composition and Structure of Atmosphere
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
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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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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