Multiple Choice
Dust in galaxies does not count as dark matter because:
A) it only absorbs some wavelengths of light but not all wavelengths the way dark matter does
B) it interacts with light
C) it is only found in spiral disks, whereas dark matter is more widely distributed
D) dust is easily destroyed by dark matter
E) there is never enough to make all the gravity
Correct Answer:
Verified
Correct Answer:
Verified
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