What are the various problems caused by combustion of fuels?

Explanation

### Step-by-Step Solution:

1. **Introduction to Combustion of Fuels**:
- Combustion of fuels refers to the chemical reaction that occurs when fuels (like wood, coal, gasoline, etc.) are burned in the presence of oxygen, resulting in the release of energy.

2. **Release of Gases**:
- During combustion, several gases are released into the atmosphere. The primary gases include:
- Carbon Dioxide (CO2)
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