Describe briefly three of the most important periods of time in the evolution of life on the plan, giving examples of organisms that existed during that time and the major events that led to their demise. Why is the date 65.5 MB so crucial to the development of Life and existence on Earth?

i think its the first one

"d.) carbon dioxide and hydrogen sulfide"

i dont know it at allnow im just getting points at this pint

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.