Question

question 3 of 10
what do all of the terrestrial planets have in common?
a. they all have solid cores.
b. they all have liquid cores.
c. they all have liquid water.
d. they all have rocky surfaces.

Explanation:

Terrestrial planets (Mercury, Venus, Earth, Mars) are characterized by having rocky surfaces. They do not all have solid cores (Earth's outer core is liquid), liquid cores (Mercury and Mars have solid - like cores in part), or liquid water (only Earth has significant amounts of liquid water on its surface).

Answer:

D. They all have rocky surfaces.