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