Question

Which statement best explains heating by radiation?

A. Warm air rises and takes heat with it; eventually it cools and sinks.
B. Sunlight travels through space without the aid of fluids or solids.
C. Land and ocean absorb and re-emit heat from the sun.​

Answer 1

Answer: B. Sunlight travels through space without the aid of fluids or solids.

Explanation:

Heating by radiation refers to the process by which energy is transferred from one place to another in the form of electromagnetic waves. In the case of the sun, the heat is transmitted to the Earth through space as radiation. This is possible because radiation does not require a medium to travel through and can propagate through a vacuum.