Which of the Following Best Summarizes What We Mean by Dark

question 96

Multiple Choice

Which of the following best summarizes what we mean by dark matter?

• A) Matter that we have identified from its gravitational effects but that we cannot see in any wavelength of light
• B) Matter that may inhabit dark areas of the cosmos where we see nothing at all
• C) Matter consisting of black holes
• D) Matter for which we have theoretical reason to think it exists, but no observational evidence for its existence

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