Geography, 23.12.2019 19:31 aliviadushane
We have seen that the disks of spiral galaxies contain stars that move in circles in the same direction around the central bulge. the disks contain many bright blue stars that have formed recently, giving them their distinct colors. the disks also often contain bright spiral-shaped arms with darker regions in between. how are these arms related to the stars?
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Geography, 23.06.2019 08:00, kelseatuttleni
The biome that includes evergreen trees is the forest biome.
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Which two nations are doing the most to combat their environmental issues?
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We have seen that the disks of spiral galaxies contain stars that move in circles in the same direct...
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