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How do scientists know that dark matter exists? A) It’s heat raises the temperature of space. B) Its gravity affects objects around it. C) It gives off electromagnetic waves. D) All of these.
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45 votes
How do scientists know that dark matter exists?

A) It’s heat raises the temperature of space.

B) Its gravity affects objects around it.

C) It gives off electromagnetic waves.

D) All of these.

User Alanda
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1 Answer

23 votes
23 votes
The answer should be (B)
User Maisie
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