Question

How black hole made??????
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Answer 1

Stellar black holes are made when the center of a very big star falls in upon itself, or collapses. When this happens, it causes a supernova. A supernova is an exploding star that blasts part of the star into space. Scientists think supermassive black holes were made at the same time as the galaxy they are in.

Answer 2

When a huge mass is shrinked into a very minute size, it attains a high gravitational pull /force which can even pull the light from its path.
Thus, forms a black hole.

Hope it helps you.