When did Charles Francis Richter die?
a) 2 February 1970
b) 10 April 1975
c) 30 September 1985
d) 21 October 1996
Answers
Answered by
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30 september 1985 according to me
GREIZMANN:
it is 30th September 1985
ohh...sorry
Answered by
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i think its option b....bt not sure
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