Seyfert galaxies   a. are more common in close pairs of galaxies than in isolated systems.   b. emit more energy at X-ray, ultraviolet, infrared, or radio wavelengths than normal spiral galaxies.   c. generally show apparent redshifts greater than 6.   d. a and b   e. a, b, and c

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Chapter1: The Study Of Minerals
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Seyfert galaxies
  a.
are more common in close pairs of galaxies than in isolated systems.
  b.
emit more energy at X-ray, ultraviolet, infrared, or radio wavelengths than normal spiral galaxies.
  c.
generally show apparent redshifts greater than 6.
  d.
a and b
  e.
a, b, and c
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