Question

what is blackhole How does it work how many black holes are in to the Universe
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Answer 1

Answer:

hope it helps you

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Explanation:

After a black hole has formed, it can continue to grow by absorbing mass from its surroundings. By absorbing other stars and merging with other black holes, supermassive black holes of millions of solar masses ( M ☉) may form. There is consensus that supermassive black holes exist in the centers of most galaxies.

Answer 2

Answer:

Black holes are places in the universe were the space time  curvature is infinite.

Explanation:

No one knows how many black holes are there in the universe. They can be identified with the radio waves that they emit.