there are many colors
frequencies
None, black is not a color. It is in fact the absence of light.
There are many different classifications of primary colors, but the most commonly said are red, yellow, and blue. Red and yellow are the colors that make ORANGE.
There are virtually an infinite amount of different skin colours that exist since the possibilities of shades are infinite.
There are 5 different colors of fire , blue, green, orange, red, and white
3
3
Fire has many colors in it depending on what is burning. Most often, you use different reds and oranges, with some yellow mixed in. Fire can also be blue or green if it's burning certain chemicals.
the color of a fire hydrant depends on the amount of water pressure it has when used
sodium turns it green
over 40 different colors
Different departments experiment with different colors for visibility. Sometimes the traditional Red is hard to see at night so other colors have been tried. The most common is Lime yellow and White.
8 different colors
There are 7 different colors that labs have.
Cats are many different colors, but not always. There are completely black or white cats, for sure. There are also solid color cats of many different colors.
Yes, fire can change lots of different colors please refer to the web site I have listed below.