Answer :
Final answer:
The three basic mechanisms of heat transfer are conduction, convection, and radiation. Radiation is the least important as a means of heat transfer in the atmosphere. Option a) is correct.
Explanation:
The three basic mechanisms of heat transfer are conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between solids. Convection is the transfer of heat through the movement of fluids, such as air or water. Radiation is the transfer of heat through electromagnetic waves.
Out of these three mechanisms, radiation is the least important as a means of heat transfer in the atmosphere. This is because air is a poor conductor and convection plays a more significant role in distributing heat in the atmosphere.
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