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The average size of a white dwarf is about the same size as the Earth.
Q9: Stars are born in<br>A)reflection nebulae.<br>B)dense molecular clouds.<br>C)HII
Q17: If gravity alone acts to retard the
Q18: The _ hypothesis includes mergers with smaller
Q25: The above image of the Sun is
Q50: Which mass star experiences more pulsations than
Q53: The cosmological principle states that the Universe
Q105: Dark energy is the name of the<br>A)force
Q106: Which of the following types of Universe
Q118: For a star of Sun-like mass, what
Q138: The four fundamental forces in nature are