Which of the following gases is produced in a combustion engine?
Mechanics (different vehicle systems)
Explanation
The **combustion engines** of vehicles produce gases that are expelled through the **exhaust pipe**. One of the main gases generated in this process is **carbon dioxide (CO₂)**. This gas is a natural byproduct of fuel combustion in the engine.
Carbon dioxide is one of the gases that contribute to **atmospheric pollution**. Therefore, vehicles are equipped with a **catalytic converter** in the exhaust pipe, which helps reduce the amount of polluting gases released into the environment.
It is important to perform proper vehicle maintenance, such as checking the engine and exhaust system, to minimize the emission of these gases and ensure efficient engine operation.
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