9. a flat area on a mountain is known as a

What body of water is the second cataract of the nile river submerged under

The covers all of earth like a thin shell,but it is not a solid sheet of material.it is broken up into several large sections and many smaller ones. fill in the blank.

Horizon a is also sometimes called a. topsoil b. subsoil c. bedrock d. weathered bedrock