Find the odd one out :soil, air, sea-water, table-salt, milk

Explanation

To solve the question of finding the odd one out among soil, air, sea-water, table salt, and milk, we can analyze each option based on their properties:

1. **Soil**: Soil is a mixture of various components including minerals, organic matter, water, and air. It contains different elements and microorganisms.

2. **Air**: Air is also a mixture, primarily composed of gases such as nitrogen, oxygen, carbon dioxide, and other trace gases.

3. **Sea-water**: Sea-water is a mixture of water and various dissolved salts (like sodium chloride), as well as other impurities and organic matter.

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