Why does earthworm come out to the surface of the soil after it rains?

Arab weather - a person gets his need of oxygen by breathing the air and introducing it to the lungs, while the earthworm gets the oxygen by absorbing it through its wet skin, so the earthworm loves moist soil, but if the rain is very heavy, the oxygen in the soil may run out Flooded with water, then the earthworm ascends and exits to the surface of the soil where the air is.

On the surface of moist soil, the worm can breathe and wriggle, and it may find a new home, but the earthworm remains safe on the ground only in the dark, as the worm puts its life at risk when it goes out to the surface of the soil in the day, as a bird may eat it, or it is killed by the sun's heat and ultraviolet rays. .