The solid, inorganic portion of the earth system is known as the

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?