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2 votes
Why does the author include this description?

to explain why humans cannot see X-rays
to explain how X-rays help scientists study space
to explain that black holes are extraordinary
to explain where black holes are located

2 Answers

5 votes

Answer:

Bbb

Step-by-step explanation:

User Sebastien
by
4.9k points
4 votes

Answer:

Step-by-step explanation:

It's b I just took the test

User Radu Toader
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