They generally eat trash and anything else they can find.
The rat wouldn't die, a rat can survive if it falls off a 5 story building
longer than a camel
No, they will not.
One that can survive and produces the most amount of off springs that would survive into adulthood.
depends on the conditions of the rat you can catch rabbies or any other deisese
Yes, rats can survive without a tail. Depending on how the rat lost the tail, it could become infected.
Highly unlikely.
Nothing because you have no service
yes. the adaptations of the excretory system of the kangaroo rat mean that it is better suited to survive in the desert. mainly in that the kangaroo rat retains the water and passes out dry feces and highly concentrated urine, as it tries to retain the water it has.
No animals can survive atomic bombs. However, some animals, especially refering to cockroaches, can survive radiation up to a certain level.
Rats are omnivores like humans, they eat both meat and plant material a primary food source.
They do pee. It's just a bit solid.