A snake sheds its skin, because it allows the snake to grow.
Not usually. Sometimes a snake will have trouble sheding its skin. This can be a problem. Soak your snake in a warm bath to help the skin shed more easily.
They shed it..
No, it does not.
No, eels do not shed their skin like a snake
So that it can grow as it will have just grown out of it's old skin.
because there will grow big
Snakes shed their skins as they grow. Snake skin doesn't 'stretch' or get replaced 'bit by bit' like ours does. They shed their whole outer skin when a new skin has formed underneath. The new skin is slightly larger than the old one - enabling the snake to 'grow' into it. The older a snake is - the less it needs to shed.
It depends on how fast the snake grows. If a snake is growing quickly, it will shed more. If a snake is growing slowly, it won't shed as often.
Yes - if they have a injury to their skin - they will shed more frequently as their body tries to repair it.
No. Snakes shed their skin primarily to grow. It also helps get rid of parasites.
No, they shed their skin as they grow... ..That would be depressing if they did...XD