Air contains 78 percent, nitrogen 21 percent oxygen, and one percent argon. which gas is the solvent?
oxygen
nitrogen
argon
none of the above

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.