What is an important difference between light-dependent and light-independent reactions of photosynthesis?

Explanation:

Photosynthesis is broadly divided into two phases. The one is the light-dependent or light reactions and other is the light-independent or dark reactions. Both these phases occur in the chloroplast of a plant cell.

Light-dependent reactions occur in the thylakoid of the chloroplast.  These reactions require light. The chlorophyll molecules absorb light and convert light energy into NADH and ATP.  Light energy also breaks water molecules and releases oxygen.      

Light-independent reactions do not require light and the reactions occur in the stroma of the chloroplast. Using power (NADH and ATP) synthesized during light reactions, carbon dioxide is reduced into sugar molecules.

answer; the correct answer is (beta)

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.