What is a black hole summary

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes

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When writting a summary for any text, one should be able to distinguish main ideas from less important parts and to include only those essential information.

A black hole is a tremendous amount of matter crammed into a very small (zero) amount of space. The top of your head would feel so much more gravitational pull than the tips of your toes that you would be stretched, longer and longer a black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. because no light can get out, people can't see black holes. Stellar, intermediate, supermassive, and miniature. The asymmetry of bright and dark sections of the ring are caused by the Doppler effect as the matter is coming toward Earth (brighter) or receding (dimmer).

the correct answer is d

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