Q1
A sea breeze occurs mainly due to:
Aconvection currents from uneven heating
Bconduction
Cradiation only
Dreflection
CBSEClass 7 (CBSE)ScienceCh 7 · Topic 2
Heat Transfer in Natural Phenomena
Understanding how heat transfer explains natural events like sea breezes.
Core concept
This same principle of uneven heating drives much larger-scale weather patterns, including monsoon winds, which are crucial to India's climate and agriculture. Convection currents in the atmosphere also help distribute heat around the globe, moderating temperatures between the equator (which receives the most direct sunlight) and the poles (which receive the least), preventing extreme temperature differences from being even greater than they already are.
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• Sea breeze (daytime): warm air over land rises, cooler sea air moves in.
• Land breeze (night-time): warm air over sea rises, cooler land air moves out.
• Uneven heating of land and sea drives these convection-based breezes.
• Similar principles drive larger patterns like monsoon winds.