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Q95: A star whose absolute magnitude M is
Q175: How is an H II region formed?<br>A)
Q178: What name is given to a nonrotating
Q196: Which mechanism is NOT considered to be
Q218: When the mass of an object exceeds
Q228: A white dwarf,the surviving core of a
Q240: Why does the star Bellatrix in Orion
Q256: An eclipsing binary system consists of:<br>A) two
Q341: What happens to the wavelength of light
Q392: The detection of neutrinos from supernova SN