The particles forming smoke and ashes are then released into air known as

Options

A. Carbon monoxide
B. Carbon dioxide
C. Lead
D. Particulate matter

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the particles that are released into the air as a result of combustion, specifically referring to smoke and ashes.

2. **Identifying the Particles**: When materials burn, they produce various by-products. Smoke is made up of tiny solid particles and liquid droplets, while ashes are the solid remnants left after combustion.

3. **Defining the Term**: The collective term for the particles that are released into the air during combustion, including smoke and ashes, is known as "particulate matter."

4. **Recognizing the Nature of Particulate Matter**: Particulate matter can be composed of various substances, including carbon, soot, and other hazardous materials, which can have negative effects on air quality and health.

5. **Conclusion**: Therefore, the particles forming smoke and ashes that are released into the air are referred to as "particulate matter."

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