What do beagles eat and how do they obtain its food? Also what are all the countries territories, states etc. where a beagle can be found, and what type of land which it lives on such as marshy mountains desert etc.

Are you talking about a beagle in the wild? Or historically speaking, where the beagle originated? You do know that a beagle is a dog, right?

Here is a good link that discusses the Beagle, from Wikpedia:

Beagle - Wikipedia, the free encyclopedia