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Q2: The hot,dense gas existing in the Sun
Q23: How do we know that matter in
Q27: After carefully removing all potential sources of
Q38: Describe the different steps in the cosmological
Q44: Quasars have high redshifts,indicating that they are<br>A)
Q67: The total energy emitted per unit time
Q72: What are the different types of spectra,as
Q98: Globular clusters are composed of<br>A) very young,metal-poor
Q114: Who discovered the radiation left over from
Q115: The manner in which the terrestrial planets