Q
The Kuiper belt and Oort cloud were first proposed by?
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A
A. Dutch astronomer kuiper in 1950
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B
B. Dutch astronomer jan oort in 1950
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C
C. Dutch astronomer kuiper oort in 1950
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D
D. French astronomer jan oort and kuiper in 1950
Correct Answer:
B. B. Dutch astronomer jan oort in 1950