During heavy exercise, we get muscle cramps due to the accumulation of:

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A Carbon dioxide
B Alcohol
C Lactic acid
D Water

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Answer: C. Lactic acid

During intense exercise, oxygen supply to muscle cells becomes insufficient. Muscles then switch to anaerobic respiration, breaking down glucose into lactic acid, which causes cramps.

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During heavy exercise, we get muscle cramps due to the accumulation of:

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