Multiple choice

Which one of the following process is not a natural phenomene?

  1. Evaporation

  2. Transpiration

  3. Condensation

  4. Crystallization
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the choices given i.e. evaporation, transpiration and condensation are natural phenomena. Crystallization is a process of formation of crystals by boiling a liquid and then cooling it until gets solidify into a crystalline solid either by natural process or artificially. Ice crystals are formed naturally by the freezing of water. So crystallization is an artificial process.

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