Use your knowledge of the climate zones of the United States and Canada to interpret the map above. Look at the map key. What is the correct heading for zone two

there is no map key

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.