Which of These Statements Correctly Describes Radiation

Which of these statements correctly describes radiation?

A) It refers to heat emission from a warm object in the form of electromagnetic waves.
B) It is a source of only heat loss for the body (i.e., the body can lose but cannot gain heat by radiation) .
C) It refers to the transfer of heat by direct contact between a warmer object and a cooler object.
D) It involves the continued cycling of cool air over the body.

Correct Answer:

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