3
QuizMultiple Choice
Origin and Evolution of the Universe
Question 3 • WV-Earth and Space Science A-CR
Alana drew a diagram to compare the life cycles of low-mass and high-mass stars.
Answer
A
X: Nuclear fusion forms hydrogen in the main sequence star.Y: A white dwarf is part of the cycle.Z: A supernova is part of the cycle.B
X: A white dwarf is part of the cycle.Y: Nuclear fusion forms hydrogen in the main sequence star.Z: A supernova is part of the cycle.C
X: A protostar is part of the cycle.Y: It begins in a nebula.Z: nuclear fusion forms hydrogen in the main sequence star.D
X: It begins in a nebula.Y: Nuclear fusion forms hydrogen in the main sequence star.Z: A protostar is part of the cycle.