<h3><u>A. Perspiration dries on a person's skin.</u></h3>
<u>W</u><u>hen the sweat hits the air, the air makes it evaporate (this means it turns from a liquid to a vapor). As the sweat evaporates off your skin, you cool down. Sweat is a great cooling system, but if you're sweating a lot on a hot day or after playing hard you could be losing too much water through your skin.</u>
