Question

How does the use of an informal writing style best help

Answer 1

It helps the writers visualize the inside of a black hole.

The other options can described bluntly and scientifically with just names and numbers.

If the writer were to use more formal writing to describe things so abstract like a black hole, it would be hard for the common reader to understand.

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for example,

The black hole looks like a giant vacuum of nothingness (informal)

The black hole is like a mass whose Schwarzchild radius is outside of itself (formal)

Which is easier to understand? Most likely the first one because of the use of informal language and writing.

Hope I helped!