EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The transfer of heat (energy) through rays or waves.
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The transfer of heat between two molecules in direct contact.
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The transfer of heat when hot molecules rise and colder molecules fall or sink.
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None of the above
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Detailed explanation-1: -Radiation is the transfer of heat energy through space by electromagnetic radiation. Most of the electromagnetic radiation that comes to the earth from the sun is invisible. Only a small portion comes as visible light. Light is made of waves of different frequencies.
Detailed explanation-2: -Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps that keep food warm work in the same way. Radiation is the transfer of heat energy through space by electromagnetic radiation. Electromagnetic radiation is made of waves of different frequencies.
Detailed explanation-3: -Radiation: The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization is known as radiation.