Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using the code given below.
A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
Answer & Solution
Correct answer: C. Both 1 and 2
UPSC CSE Prelims 2014 (GS-I, Set A), Q.13. Official answer key: C.
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