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Type: Multiple-Choice
Category: Stars
Level: Grade 9
Score: 1
Tags: stars, red giants
Author: jlovering
Last Modified: 6 years ago

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Grade 9 Stars

A red giant is formed when
  1. a star begins fusing helium.
  2. a star begins fusing hydrogen.
  3. binary stars merge.
  4. a star begins burning its hydrogen shell.