Q. In the open ocean, tsunami can travel ________ miles per hour with periods up to_________ minutes.
A. 50; 20
B. 50; 60
C. 485; 20
D. 485; 60
Answer: 485; 60
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A. 50; 20
B. 50; 60
C. 485; 20
D. 485; 60
Answer: 485; 60
