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1. Where are the youngest stars of the galaxy located?
Black holesHaloSpiral armsCentral bulge
Nicolas CopernicusIsaac NewtonTycho BraheJohannes Kepler
OvulesPollenOvaryBees
Law of MotionLaw of MagnetismLaw of GravityLaw of Mechanics
150 miles/minute150 miles/second150 miles/day150 miles/hour
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