32. In contrast to alcohol, marijuana a. is rapidly eliminated from the body.
b. does not impair motor coordination.
c. amplifies sensitivity to sounds.
d. does not impair memory.
e. produces severe tolerance.

Labor costs would be a large factor holding production of shade-grown coffee back. if it requires higher labor costs to receive a smaller benefit per hectare, then these costs would be prohibitive on expanding this practice to all coffee growing.

This statement is true i just took the test