. How does the sun’s radiative zone compare with the convective zone? A. The convective zone is hotter and closer to the sun’s core.
B. The radiative zone is cooler and closer to the sun’s core.
C. The convective zone is cooler and closer to the sun’s core.
D. The radiative zone is hotter and closer to the sun’s core.

age range would be the answer

trachea, alveoli, lung capillaries, arteries

not too sure but maybe in the hot springs.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.