"Supercooled rain" occurs when

  1. The temperature of water molecules is the same as the ambient air temperature
  2. The temperature of the water molecules is greater than 0°C
  3. The temperature of the water molecules is less than 0°C, maintaining the liquid stateCorrect answer
  4. The temperature of the water molecules is higher than the ambient air temperature

Explanation

Supercooled rain (or supercooled water) is defined as liquid water existing at a temperature below its standard freezing point of 0°C (32°F).

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