Question

1.2.3

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

Answer 1

Lactic Acid

Step-by-step 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.

Answer 2

Step-by-step explanation:

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