The atmosphere shields Earth by filtering harsh ultraviolet rays and retains re-radiated terrestrial infrared heat via greenhouse gases like carbon dioxide and water vapor, preventing extreme daily temperature swings. Class 9 Science Exploration New Book All Chapter Solution Revise, Reflect, Refine Chapter ...
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The troposphere hosts weather phenomena. It is heated from below by the Earth’s surface, creating vertical temperature drops and strong convection currents that cause warm air to rise, condense and generate storms. Class 9 Science Chapter 13 Earth as a System: ...