If plants take in C02 and release 02, isn't it okay just to give them carbon

Explanation:

no it's impossible for both living beings because if only carbon is given they can't prepare their food at the same time living things can't get oxygen for breathing so

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.