They get destroyed. Their matter becomes part of the black hole.
Stars can be sucked into black holes.
Stars do get sucked into a black hole if they pass the event horizon.
They use X-Rays from the stars being sucked into them.
Dead stars are not necessarily black holes. Dead stars can become white dwarfs, neutron stars, or black holes depending on their mass. Only the most massive dead stars can collapse further to become black holes if they exceed the Chandrasekhar limit, around 1.4 times the mass of the Sun.
They will remain as black holes for a long, long time.
It is known what will happen. You will get sucked up! But before you get sucked up, Black Holes give flicker of black hot gas. Black Holes have so much power that they can't control it. So that's why they suck up everything in their path. Fun Fact: Black Holes are actually stars that died and contain so much power!!
Because they give off absolutely no light and no radiation. The only radiation is X-Rays from the stars being sucked in.
When they run out of fuel they collapse and become black holes.
Some do, some become "bright giants" instead.
No. Black holes are the remnants left behind when the very largest stars die.
The most massive stars become black holes.
They are called "black holes".