Is singapore a state or a country.

it is a state

Explanation:

On 9 August 1965, Singapore separated from Malaysia to become an independent and sovereign state , officially the Republic of Singapore, is a sovereign island city-state in maritime Southeast Asia.

Explanation:

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.