Question

Earthworm वर्षा के दिनो मे क्यों दिखाई देते है

Answer 1

becasue there is moisture in the earth and air

Answer 2

An earthworm breathes oxygen by absorbing it through its moist skin. it like 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 breath. on top of the wet ground, the worm can breath and wriggle along.