Question

1. select the correct answer. planet a is an inner planet with no moon and hardly any atmosphere. planet b is an inner planet with no moon but with a dense atmosphere. which pair of planets is being described?

○ a. mars and venus
○ b. mercury and earth
○ c. mercury and venus
○ d. mars and earth

Explanation:

To solve this, we analyze the properties of inner planets:

• Mercury: Inner planet, no moon, very thin (hardly any) atmosphere.
• Venus: Inner planet, no moon, has a dense atmosphere.
• Mars: Has two moons, so not matching Planet A or B.
• Earth: Has one moon, so not matching.

So the pair with Planet A (Mercury) and Planet B (Venus) is option C.

Answer:

C. Mercury and Venus