Where do most of the people in north america live today?
a. on the coasts and around the great lakes
b. along the gulf of mexico and the great lakes
c. in the interior of the continent and on the florida peninsula
d. in the highlands and prairies

On the coasts and around the Great Lakes

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.