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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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Answer:

Idiom

Explanation:

The options you were given are the following:

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Idioms are phrases that don't have a literal meaning. This means that we can't conclude what a phrase means based on the meanings of words that make it up. We simply have to learn what these phrases mean.

An example of an idiom is <em>in one ear and out the other</em><em>.</em> This doesn't mean that something enters through one and exits through the other ear. Actually, this expression refers to an instance when someone ignores, dismisses, or forgets something almost immediately after being told. In this case, Dahl's antagonist keeps forgetting Billy's name instantly after hearing it.

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Explanation:

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