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Section 9.1
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1
What type of galaxy contains some of the oldest stars in the universe?
A)elliptical
B)irregular
C)spiral
D)open cluster
2
What forms the sphere that appears around the centre of the Milky Way?
A)galaxy superclusters
B)open clusters
C)elliptical clusters
D)globular clusters
3
The Milky Way is a(n)…
A)globular galaxy.
B)elliptical galaxy.
C)irregular galaxy.
D)spiral galaxy.
4
Which method is best for determining the diameter and shape of a galaxy?
A)infrared radiation
B)observations with optical telescopes
C)mapping techniques with radio waves
D)measuring frequency of light sources
5
Which galaxy is farthest from the Milky Way?
A)Large Magellanic Cloud
B)NGC 6822
C)Pinwheel
D)Andromeda





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