What is a cosmic ray shower?
A) shower of particles produced when a cosmic ray strikes atoms in Earth's atmosphere
B) burst of high-energy atomic nuclei arriving at Earth from interstellar space
C) another name for a meteor shower
D) pulse of gamma rays arriving at Earth from a rotating, magnetized neutron star
Correct Answer:
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Q156: What is believed to be the source
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Q160: What are cosmic rays?
A) steady, low-energy flux
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