If you wanted to buy only three colors of paint and mix them to make any
color you wanted, which three colors would you buy?

in physics zero. in muscle fatigue could be high

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.