Question

why is venus the hottest solar system planet? (1 point)
it has abundance of nitrogen and oxygen gases.
it is closest to the sun.
its atmosphere is rich in carbon dioxide gas.
it has a core, a mantle, and a crust.

Explanation:

Venus has a thick atmosphere mainly of carbon - dioxide which causes a strong greenhouse effect, trapping heat and making it the hottest planet.

Answer:

C. Its atmosphere is rich in carbon dioxide gas.