Directions for Questions Match List-I with List-II and choose the correct answer from the given options.
List-I List-II
A. Gregor Mendel 1. Role of earthworms in soil fertility
B. Harold C. Urey 2. University of Vienna Charles Darwin
C. Charles Darwin 3. Origin of organic molecules on earth
D. Dmitri-I-Mendeleev 4. Periodic table
Choose the correct answer: