1.2.3 The acid that accumulates in the muscles of humans during
continuous strenuous physical activity.

Explanation:

lactic acid that accumulates in the muscles of humans during continuous strenuous physical activity

Lactic Acid

Explanation:

When you exercise, your body uses oxygen to break down glucose for energy. During intense exercise, there may not be enough oxygen available to complete the process, so a substance called lactate is made. Your body can convert this lactate to energy without using oxygen.

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there is no

explanation: