How does planting high-yield crop varieties make farming more sustainable? a. it increases the amount of water needed. b. it keeps soil fertility from diminishing over time. c. it keeps chemicals from entering the watershed. d. it decreases the amount of land needed.

B. it keeps soil fertility from diminishing over time.

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral

Mechanical energy from wind nonrenewable resource