Which of the following is a physical process which most significantly impacts the physical characteristic of the earth?

earthquakes

Explanation: I had the same question and that was the answer

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.