45 billion
brown,blue,green,yellow,red 4 or 5 That's all I know
the colors which we can see are called visible colors that appear in visible light spectrum VIBGYOR these are the only visible colors although we can see different colors by the combination of these colors also whit is a visible color
It's because people have different hair colors. Ther is no explanation to that reason.
a lot
tooo many to count
45
ther is 5
22
100
ulimited can not end
10