Mercury's+Air+and+Surface+Composition

Mercury's Air and Surface Composition **What does Mercury look like?** Mercury Looks sort of like Earth's moon. It has craters and is relatively smooth. An exception is that Mercury is covered in __red__ rocks.

**What is Mercury's core composition?** Mercury's core is made of iron. It's core has a diameter of 3,600 kilometers, or, a radius of 1,800 kilometers.

**What is Mercury's air composition?** Mercury's air is made of the following: MAJOR GASES- Sodium, Hydrogen, Helium, Potassium, and Molecular Oxygen. MINOR GASES- Argon, Carbon Dioxcide, Nitrogen, Xenon, Krypton, and Neon.

