The process of approving the constitution is  best  described as

answer; /// during daylight hours the sun heats up the ground,and at night the clouds insulate the warmth making it warmer ;

the answer is c i just put d and i got it wrong so yeah its d

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.