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In astronomy the term red shift denotes the extent to which [#permalink]
 20 Jul 2007, 13:33
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0% (00:00) correct
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370. In astronomy the term “red shift” denotes the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the Earth.
(A) to which light from a distant galaxy has been shifted
(B) to which light from a distant galaxy has shifted
(C) that light from a distant galaxy has been shifted
(D) of light from a distant galaxy shifting
(E) of the shift of light from a distant galaxy
has shifted and has been shifted: On what basis do I decide? pls exp!
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Didnt understand the question well. But was able to boil down between A and B. On GDay I wud have chosen B
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I'll choose B!
'extent to' is correct. From A & B, use of present perfect 'has shifted' is correct.
Ankita
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