Which material is an aquifer layer most likely made of? soil clay solid granite cracked rocks

All of the following came out of china and were exchanged along the silk road, except a. papermaking b. block printing c. buddhism d. compasses select the best answer from the choices provided a b c d

The position on the earth in which a place can be found

Which of the following is the unit of measurement used to describe the severity of an earth quake?