Multiple Choice
How are interstellar bubbles made?
A) by the collapse of a gas cloud to form stars
B) by the ejection of planetary nebulae from low-mass stars
C) by the winds of massive stars and supernovae explosions
D) by collisions between the Milky Way and satellite dwarf galaxies
E) by the rapidly rotating magnetic fields of pulsars
Correct Answer:
Verified
Correct Answer:
Verified
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