(A) classification of stars (X)
(B) classification of planets (X)
(C) classification of galaxies ()
(D) classification of earth’s zones (X)
Answers: classification of galaxies
(A) classification of stars (X)
(B) classification of planets (X)
(C) classification of galaxies ()
(D) classification of earth’s zones (X)
Answers: classification of galaxies
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