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Question 1: What is causing a supernova?

The collapse of the C,O core of a sun-like star. The collapse of the iron core of a high-mass star. The explosive onset of the Triple-Alpha process (3 He → C) in a star. The explosive onset of Hydrogen fusion in a protostar.

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Question 1: What is causing a supernova?

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  1. The collapse of the C,O core of a sun-like star. • The collapse of the iron core of a high-mass star. • The explosive onset of the Triple-Alpha process (3 He → C) in a star. • The explosive onset of Hydrogen fusion in a protostar. • The explosive onset of the fusion of Hydrogen, accumulated on the surface of a white dwarf. :60 Review Quiz No. 19 0 Question 1:What is causing a supernova?

  2. :45 0 Question 2:The most famous supernova in recent history occurred in • 1845. • 1905. • 1987. • 2000. • 2004.

  3. :45 0 Question 3:The Crab Nebula is • the remnant of a giant seafood feast. • the remnant of the famous supernova 1987A • the remnant of a supernova observed in A.D. 1054. • the remnant of a recent nova explosion. • a planetary nebula.

  4. :45 0 Question 4:After a supernova explosion, the collapsed stellar core becomes • a neutron star or a black hole. • a white dwarf. • a protostar. • a Herbig-Haro object. • a brown dwarf.

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