what causes shedding?

Answer 1

Is this enough:...........

Something sad, a death of a loved one will cause you to shed some tears.

A bright light, or cloudless sky will cause light to be shed on the ground.

The oil on a duck's back will cause the feathers to shed water.

A natural occurrence will make a snake shed it's skin.

A strict diet will cause you to shed weight.

French Poodles are good house dogs as they do not shed hair.

Answer 2

Bad nutrition or a bad brush