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Alborosie
3 years ago
5

Read this excerpt from "Why Are They Called Black Holes?"

English
1 answer:
Klio2033 [76]3 years ago
8 0

Answer:

A star can live for billions of years: Option A.

Explanation:

The given excerpt clearly indicates that a star can run out of hydrogen and energy only after millions or billions of years. Only then it collapses to a little ball with gravity. This means it would live till those millions or billions of years.

'Black hole' is a region in the space which has such strong gravitational force that it pulls every object that passes through it. Albert Einstein predicted that black star would exist if a dead star also had enough gravity. Hence, "option A" is the correct one.

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