Question

select the correct answer. which planet is planet a? a. mars b. saturn c. uranus d. venus

	planet a	planet b
planet composition	rocky mantle, iron core	hydrogen, helium
gases in atmosphere	very dense atmosphere that is 96.5% poisonous carbon dioxide and 3.5% nitrogen	mostly hydrogen and helium
number of moons	0	62
rings	no rings	visible rings

Explanation:

Venus has a distance of about 0.72 AU from the Sun, a rocky - mantle and iron - core composition, a very dense atmosphere of 96.5% carbon dioxide and 3.5% nitrogen, 0 moons, and no rings. Mars has two moons. Saturn and Uranus are gas giants with visible rings and are much farther from the Sun.

Answer:

D. Venus