C. according to Earth's existing magnetic field.
Answer: Dr. Balduzzi says it's important to remember that sweat is your body's main evaporative cooling system -- kind of like an internal fan. If you're exercising in cold air, your body doesn't need to produce as much sweat to keep you cool.
Explanation:
B. DNA is short for <span>Deoxyribo nucleic acid, which is nucleic acid..
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