Answer:
-They don't live forever, but slowly evaporate returning their energy to the universe.
-Black holes can have the mass of several million suns.
-Black holes differ from each other in mass and their spin. Other than that, they are all very similar.
-The center of a black hole, where all its mass resides, is a point called a singularity.
thenks and mark me brainliesttt :)) pls
Answer:
The proper format for citing sources.
Stressful circumstances may force a young person to grow up quickly.
B. <span>a long historical account of how the device is used</span>
