The level of respiratory tract where air is max moistened is A. Nasal cavities
B. Nasal openings
C. Air sac
D. Trachea

no sé si entiendes español pero te daría la respuesta si lo supiera, pero lo siento mucho

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.

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.