Question

4. which of the following statements about similarities among the inner planets is true ? ( 1point )

A. mercury and mars have the same number of moons


b. mercury and venus have similar atmospheres

c. earth and venus are about the same size

d. earth and mars both have liquid water

Answer 1

Mercury has no satellines, while Mars has two - Phobos and Deimos.

The atmosphere of Venus is the harshest found in the Solar system. Greenhouse effect is warming the surface to about 400 °C, while Mercury has nearly no atmosphere.

On Mars there is water detected but due to the thin atmosphere, temperatures are low, so water is frozen.

Correct answer is C.