Multiple Choice
________ discovered the crust-mantle seismic discontinuity in ________, proving that the Earth was not internally homogeneous but layered.
A) Beno Gutenberg; 1914
B) Arne Sachnussen, 1885
C) Charles Richter; 1935
D) Andrija Mohorovicic; 1909
Correct Answer:

Verified
Correct Answer:
Verified
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