How is sodium chloride extracted from sea water?

Explanation

**Step-by-Step Solution:**

1. **Source Identification**: Identify seawater as the primary source of sodium chloride (NaCl), commonly known as salt.

2. **Evaporation of Seawater**: Begin the extraction process by evaporating seawater. This can be done by heating the seawater or allowing it to sit in shallow ponds under the sun. As the water evaporates, the concentration of dissolved salts increases.

3. **Formation of Crude Salt**: As the seawater evaporates, the dissolved salts begin to crystallize and form crude salt. This crude salt contains not only sodium chloride but also other impurities such as sand and various minerals.

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