jupiter, saturn, uranus
A lander?
solid; you can step on them.
A face.
the crust
Base.
The scientific term for the surface of a liquid is "interface" or "liquid surface." This is where the liquid meets the surrounding atmosphere or another medium.
A face is a flat surface. The only solid with no flat surfaces is a sphere.
Planets are only know as Gas Giants if they fall into that group, Saturn , Jupiter, Uranus and Neptune are Gaseous Planets . This is purely because the basic make up of the Planet is from Gases, they have no solid surface and are large.
The "Surface Area" of the solid figure. Note, the word "total" in the answer above is not correct/needed - there can not be anything less than a surface area of a solid figure.
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
In this solar system there are four, Mercury, Venus, Earth, and Mars.
No. Uranus is a gas planet, so it does not have a solid surface.