Varun took a cup of water and dissolves two spoons of salt in it. Later he placed the salty water under the sunlight for three days. He found only crystals of salt but no water remaining in the cup. Which of the following processes is being demostrated in the above experiment ?
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Filteration
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Boiling
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Condensation
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Evaporation
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Decantation
D
Correct answer
Explanation
Evaporation is the process when the sun heats up water in river or lakes or the ocean and turns it in to vapour or steam. The water vapour or steam leaves the river, lake or ocean and goes in to the air. In the above experiment the water in the salty solution evapoated in the air and only the crystals of salt left.