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Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Hassan Qureshi
Posts by Hassan Qureshi
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The grey zone is the region of eruption of magma. As we move away from this zone, the age of the rocks increase progressively. The distance of the point P from the grey zone is equal to the distance of point S from the grey zone. Since spreading rate for both the plates is uniform, rocks at P & S have the same age. So, statement (A) is correct.The distance of R from the grey zone is half the distance of s from the grey zone. So, the rocks at S are twice as old as those at R. So, statement (B) is also correct. Since the point Q lies in the grey zone which represents the zone of magma enuption, the age of rocks at Q is O Ma. So, statement (C) is also correct. The age of rocks decrease progressively from P to Q & then increase as we move from Q to S.So, statement (D) is not correct.Hence, (D) is the answer.
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Hassan
Ask, Learn & Lead It
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The Five Laws of Library Science by S.R. Ranganathan, M.A., L.T., F.L.A., University Librarian, Madras and Member of the International Library Committee of the World Association for Adult Education, with a Foreword by Sir P.S. Sivaswami Aiyer, K.C.S.I., C.I.E., and an Introduction by W.C. Berwick Sayers, F.L.A., Cheif Librarian, Croydon Public Libraries.
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Correct Answer : Option (A)