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Question

Which of the following process gives salt from sea water?

A
Filtration
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B
Centrifugation
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C
Melting
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D
Evaporation
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Solution

The correct option is D Evaporation
Evaporation is the process used to produce salt from sea water.

The seawater is collected in shallow pits or ponds near the sea-shore. These ponds are then exposed to sunlight for few days. The heat from the sun causes the water to evaporate, leaving behind a layer of sea salt crystals that can be harvested.

The salt crystals so obtained are collected and transported further to factories, where they are purified and packed for consumption.

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