Multiple choice general knowledge science & technology

Which of the following helps keep body cool?

  1. Respiration

  2. Perspiration

  3. Mastication

  4. Urination
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Perspiration (sweating) is the body's primary cooling mechanism. When sweat evaporates from the skin surface, it removes heat energy, helping to regulate body temperature. Respiration is for gas exchange, mastication is chewing, and urination is for waste elimination.

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