assorted gases
Because it is less dense than the material that makes up the earth's crust, but more dense than the material that makes up the air.
The outer cores is made up of mostly iron and nickel in a liquid state.
the heat makes the density less or more dence depending were it is in the earths layers
A meteorite.
rock
Makes stars twinkle.
Nitrogen makes up 78% of the Earth's atmosphere.
The lithosphere.
hemisphere.
it is the lithosphere
argon
iron