Ozone, which is also known as trioxygen, is a chemically bonded compound, and contains three oxygens.
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they ensure valid results
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when body temperature rises, such as when exercising on a hot day, the dermal blood vessels will dilate, in the sweat glands begin to secrete more sweat. the invaporation of the sweat from the surface of the skin cools the body by dissipating heat.
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the state of having the same or similar relation, relative position, or structure