Natural selection generally results in a) increased genetic variation b) a population that is better adapted to a future environment c) a population that is adapted to its current environment d) an increase in the size of a population

littering streams           is the answer

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.