Kind of. They go dormant if their is nothing in their surroundings to absorb. They have a constant swirling cloud of dust and gases if they are active, but they are simply a black orb if they are domant.
The most massive stars will die as black holes.
Black holes do not die but they can evaporate.
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
Black holes are the result of the gravitational collapse of a large star.
Black holes. They can be so large that they can suck up universes at a time
Most black holes were once the cores of very large stars that collapsed.
Theoretically they can be as large as a small star or as large as a galaxy
Black holes are the result of a large star that has collapsed.
No. Black holes are the remnants left behind when the very largest stars die.
never
Most black holes are believed to form when very massive stars die.
Not all galaxies have black holes in their centers, but many large galaxies, including our own Milky Way, are believed to have supermassive black holes at their centers.