The industrial process of harnessing dinitrogen gas for
the production of fertilizers is
called the Process.

The earth's internal process which drives seafloor spreading is

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

Which layer surrounds the center of the earth? a: crust b: core c: mantle