It is unclear what you are inquiring about.
make sure your rabbit isn't in there then fill it with mud so it will soak up the water and your rabbit will dig another one somewhere else. (make sure there are no babies or even your own rabbit down there)
Rabbits burrow into the ground.
They don't it just grows on the animal, then it's cut off the rabbit, cured and capped so people can own it as a charm.
You can't make it happen, it happens naturally as with every other living thing.
Yes, the noun 'rabbit' is a word for a type of animal, a living thing.
You don't tranquillise rabbits on your own: this is the sort of thing a vet does. See the related questions below for info and links.
ears eyes nose mouth heart and legs
No. the only thing on the planet that can make its own food is plants
No. A bunny and a rabbit are the same thing.
They are the same species (European Rabbit), but they are different breeds.
A hare is a type of wild rabbit, not a 'thing'.
no there isn't