Primary cosmic rays are produced
A) in the solar system.
B) in galaxies.
C) in the regions between galaxies.
D) everywhere in the universe.
Correct Answer:
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Q32: The "big bang" refers to the origin
Q33: Quasars
A) are weak sources of light and
Q34: Galactic spectra show
A) red and blue shifts.
B)
Q35: In the light of current evidence, a
Q36: The galaxies in the universe are distributed
A)
Q38: In the universe today there
A) seems to
Q39: Primary cosmic rays consist of
A) atomic nuclei,
Q40: Dark energy
A) is the energy equivalent of
Q41: The number of planets outside the solar
Q42: The heavy elements in the earth were
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