Q.

Approximately how many times each day, do our heart valves open and close normally?

A. 10,000 times
B. 1,00,000 times
C. 1,50,000 times
D. 2,00,000 times
Answer» B. 1,00,000 times
Explanation: The opening and closing of heart valves is known as a heartbeat. The average human heart beats 100,000 times per day.
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Eddie Datta
10 months ago

Impressive variety of topics.
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