The Moon has a surface area of 3.793 × 107 km² The closest continent is Africa (3.007 x 107 km2) or Asia (4.458 ×107 km²)
I dont know sorry
Both surfaces are rocky, heavily cratered, and have no liquid water. Mercury does have a tenuous atmosphere but it does not contribute to much erosion.
The moon's surface is regolith (ground up rock).