11.A ____ generally contains well over 1000 galaxies and is quite dense. They often contain many giant elliptical galaxies.A.local groupB.poor clusterC.rich clusterD.tidal tailE.quasar 12.The Milky Way is part of I. a poor cluster. II. a rich cluster. III. the Virgo Cluster. IV. the Local Group. A.I and IIIB.I and IVC.II and IIID.II and IVE.just III 13.__________ are produced when two galaxies.
- 11.A ____ generally contains well over 1000 galaxies and quite
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