Answer:
When fossil fuel is burned in a car engine, pollution increases in the atmosphere.
Explanation:
Burning of fossil fuels are the main reasons for increasing of air pollution. When fossil fuels burn, energy is produced with carbondioxide. Energy is used by the engine of vehicles for movement while carbondioxide gas is released in the atmosphere which increases pollution in the air. This carbondioxide gas is also responsible for climate change because it is a greenhouse gas which causes global warming.