Ultraviolet C (UVC) has the shortest wavelength and is the of the types of ultraviolet radiation.

A.) most dangerous
B.) least reactive
C.) most reactive
D.) least energetic
E.) most energetic

I’m pretty sure the answer is A- most dangerous

Yellow versus red is not a receptor pair according to the opponent process theory.

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.