How long does it take for sugar to dissolve in cold water?

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.