Quiz

CCI02.03.03.- Dark matter: The matter we can't see

PEDRO ÁLVAREZ JIMÉNEZ 5 perguntas

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Perguntas do quiz (5)

1Which was not one of the four elements the ancient Greeks believed comprised the world?
1. AEarth
2. BAir
3. CSpirit
2When did scientists first measure the motion of groups of moving galaxies?
1. A1900's
2. B1930's
3. C1960's
3The universe's expansion seems to be ________.
1. ASlowing down
2. BAccelerating
3. CChanging directions
4Today's best measurements estimate that about ___% of the universe is dark matter.
1. A13
2. B27
3. C42
5String theories can explain the universe but
1. AYou cannot check them out by now
2. BThey can explain only the dark matter
3. CBoth are correct