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Greenhouse Effect
Greenhouse gases absorb and re-emit some outgoing infrared radiation.
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Greenhouse Effect
Recommended for Class 10
Greenhouse Effect
Greenhouse Effect
Earth receives energy from the Sun and later emits much of its outgoing energy as infrared radiation.
Greenhouse gases absorb and re-emit some of this outgoing infrared radiation.
This keeps Earth's surface and lower atmosphere warmer than they would be without these gases.
Natural Greenhouse Effect
The natural greenhouse effect is essential for maintaining temperatures suitable for life.
Enhanced Greenhouse Effect
Increasing concentrations of greenhouse gases can alter Earth's radiative balance and contribute to long-term warming.
Important Gases
carbon dioxide; methane; water vapour; nitrous oxide.
Important Correction
Greenhouse effect is not the same as ozone depletion.
Greenhouse gases do not “trap all heat.”
Greenhouse Effect — Advanced
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Practice
PQ
Q1. Define greenhouse effect.
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Q2. State natural role.
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Q3. Explain enhanced effect.
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Q4. Name greenhouse gases.
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Q5. Distinguish ozone depletion.
Exam Practice
EQ
Q1. Explain the mechanism.
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Q2. Explain natural importance.
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Q3. Explain enhanced effect.
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Q4. Name important gases.
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Q5. Correct “all heat trapped.”
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.