What capital city is located at 10°N 80°W?

Panama City

Explanation:

Although 10 degrees North by 80 degrees West is not directly on a capital of any place, it is very close to Panama City, the capital of Panama.

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.