Which of the following is an early practice of sustainable farming?

crop rotation
soil quality sensors
water pumps
pesticides

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

Formidable obstacles of climate, terrain, and distance hinder exploitation of natural resources in russia. true false

What can happen to solar radiation when it enters earth’s atmosphere? check all that apply. it is absorbed by earth. it is reflected by clouds. it is reflected by glacial ice. it is condensed into visible light. it is amplified by water molecules.