Earth's surface is heated unevenly by the Sun. A student wants to make a model that shows how this uneven
heating is related to the curved shape of Earth's surface. In
the model, the Sun will be represented by a bright
flashlight
Which object would best represent Earth in the student's model?
O A. A flat board tilted at an angle
B. A second flashlight
O C. A shallow tray filled with soil
D. A round beach ball

D.

Explanation:

The earth is round and when the sun is shining on the earth the light of the sun is directed to one main surface that is directly towards towards the sun. This area depending on the time of year is the equator( or the middle of the earth) the further away from equator or the surface that is receiving the most of the sun light the less sun light and heat reaches it.

i need more info to 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.