What is the function or purpose of hair?

One primary function of hair is to insulate the body. The reasoning for this is how it serves almost a barrier between cold air and skin. It also keeps the warmth between skin and hair, making the body warmer.

Not sure if this is correct but I hope it helps :]

When you see bubbles in your pancakes

The answer is a : varying the size of objects or subjects, so that some are smaller than others and the illusion of depth is created.hope this : )