Give one example each of solid in gas and liquid in gas solutions.

Explanation

To answer the question, we need to provide examples of two types of solutions: solid in gas and liquid in gas. Let's break this down step by step.

### Step 1: Understanding Solutions
A solution is formed when a solute is dissolved in a solvent. The solute is the substance present in a smaller amount, while the solvent is present in a larger amount.

### Step 2: Example of Solid in Gas
For a solid in gas solution, the solute is a solid and the solvent is a gas. An example of this is **dust in air**. Here, the dust particles (solid) are dispersed in the air (gas).

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