The scheme of modern taxonomy goes:
Life > Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species
So, a PHYLUM is made of several classes.
The answer is lithosphere.
The correct answer is sand, silt, and clay. These three sediments are the ones who make up the C horizon. This layer is located right below the B horizon and which is known to be a delicate layer since it has a weak pedological development compare to others.
Because astrologers don't use tools , don't observe the planet.