Black holes do not die; they evaporate.
They might seem like nothing, but they do evaporate eventually. Over a course of a billion years one might have half-evaporated.
In a black hole, gravity is so strong that nothing, not even light, can escape. This means that whatever goes into a black hole is trapped inside forever, making the saying "what happens in a black hole stays in a black hole" true.
That's not exactly what happens. What really happens is that they just absorb each other and become a bigger black hole.
It takes a dying star 20 times the size of our sun to create a black hole. So no they can't.
The object swallowed by the black hole is destroyed; its mass is added to the mass of the black hole.
Any matter that enters the black hole will be destroyed. Also, it will increase the black hole's size.
It evaporates.
evaporation
Its called a Super Black-hole and scientists believe it is what holds all galaxies together.
They will merge to form a single black hole with the combined mass of the town that merged.
a star dying in space that sucks everything into it.
Objects which approach a black hole will get sucked into it.
It gets bent toward the black hole's singularity.