Q. Which process of heat transfer is used by the Sun to heat the Earth?

सूर्य द्वारा पृथ्वी को गर्म करने के लिए ऊष्मा स्थानांतरण की किस प्रक्रिया का उपयोग किया जाता है?

A
Conduction
प्रवाहकत्त्व
B
Convection
कंवेक्शन
C
Radiation
विकिरण
D
Absorption
अवशोषण

Explanation

The Sun heats Earth by radiation. Since space is a vacuum, conduction and convection can't occur.
The Sun emits electromagnetic waves (mostly infrared) that travel through space and warm the Earth's surface.

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