A number should be rounded up if
a.
it is the first digit
b. the number after it is between 0 and 4
C. the number after it is between 5 and 9
d. it is the last digit
Please select the best answer from the choices provided

which

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.