📊 Physics
Q. Why does the surface water of a pond remain cool in a hot day?
  • (A) heat absorbed at the surface is transmitted downwards
  • (B) water evaporated at the surface and evaporation causes cooling
  • (C) water in contact with the bottom of the pond become cooler and rises due to convection
  • (D) None of these
✅ Correct Answer: (B) water evaporated at the surface and evaporation causes cooling

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