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Geography, 01.12.2019 15:31 christylivingsowzxa2
Elliptical galaxies have no (1 point) spiral arms. central nucleus. stellar density. interstellar gas.
2. is used to determine distances between galaxies. (1 point) hubble’s law newton’s theory of relativity the cosmological redshift euclidean geometry
3. which formation theory suggests that galaxies formed when massive protogalactic clouds fragmented into smaller gas clouds that then formed into individual galaxies? bottomup topdown lambda dark matter galaxy collision
4. astronomers’ everexpanding knowledge of the universe has coincided with the development of a collection of indirect distance measurement techniques. the cosmic distance scale the cosmic microwave background light echo distance differential galactic rotation
5. galaxies are characterized by a long stretch of stars that extends out beyond the galactic disk. elliptical barredspiral irregular spiral (1 point) (1 point) (1 point)
6. the of the galaxies prove(s) that the cosmos is not steady and unchanging. (1 point) galaxies quiz 6. the of the galaxies prove(s) that the cosmos is not steady and unchanging. (1 point) shape cluster gravitational rotation recessional motions
7. astronomers are able to measure changes in the rate of universe expansion by observing which (1 point) of the following? distant nebulae black holes distant supernovae cosmic microwave background
8. protogalactic clouds that have large amounts of angular momentum may develop into galaxies. spiral irregular elliptical irregular spiral
9. what exactly is expanding in the universe? (1 point) distances separating the galaxy clusters distances separating the planets in our solar system individual galaxy and galaxy clusters atoms, rocks, and planets
10. the milky way is an example of what kind of galaxy? (1 point) barredspiral unbarredspiral elliptical s0
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