What are the Similarities of Mercury and Venus?

Answer 1

One similarity between Mercury and Venus is that they are both smaller than Earth. They are also both closer to the sun than Earth.

Answer 2

Both Mercury and Venus are terrestrial planets, meaning they have solid surfaces. They also lack moons and rings and have very thick atmospheres. Additionally, they both have extreme temperatures, with Mercury being the hottest planet and Venus having a surface temperature high enough to melt lead.