why do earthworms come out of water logged soil during rain?

During rainy season water fills up the space occupied by air. Thus  animals like earthworm which breath through their skin have come out of the water logged soil for respiration.

Earthworms live by making burrows in the upper layer of the soil. Due to rain their burrows become flooded which creates problems for them to breathe. Hence earthworms comes out from the burrows for respiration.

 Earthworms come out of water logged soil during heavy rains because they need to keep their skin moist

as the water fills up the space where there should be air so they come out to respire .

earth worms come out of the water when rains because when rain comes the air present in the soil will be blocked by rain drop and they will not orygen so they come out some animals like snake, earthworm and inscets which live in ground comes out when rains.

 We breathe oxygen from the air with our lungs. An earthworm breathes oxygen by absorbing it through its moist skin. It likes damp soil, but if the rain is very heavy, the oxygen in the water-logged soil may run out. Then the worm has to come up into the air to breathe. On top of the wet ground, the worm can breathe and wriggle along. It might find a new home, or even a mate. But the worm is only safe above ground in the dark. When daylight comes, the worm is in trouble. A bird may eat it and the sun’s heat and ultraviolet light will kill it.