Yes but you'll have to dig in the mud. Have fun :)
yes worms eat mud/soil
mud worms can live up to 45 feet in the dirt while their cousins the earthworms can live up a mile!!!
Mud, since they live in it.
In a way. The same atoms that are present in the mud, when moved through or eaten by a worm, can become part of the worm's chemical makeup. Otherwise, no.