9th Class Science Matter in Our Surroundings Question Bank 9th CBSE Science Matter in Our Surroundings

  • question_answer
      How does perspiration help to maintain the body temperature in summer?

    Answer:

                   During perspiration, sweat evaporates from the surface of the body. In Evaporation is a surface phenomenon which absorbs heat. As a result, body temperature lowers and we experience relief from heat.


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