Primary pollutants come from incomplete combustion. They lead to secondary pollutants like O3 and NO21 causing acid rain and global warming. Internal combustion engines2 diesel or gasoline3 use the four-stroke Otto cycle for power in cars.Intake valve takes in air and gasoline. Spark plug ignites gasoline. Outlet valve releases combustion gases. Combustion chamber is where explosion occurs. Piston moves to change chamber size. Connecting rod links piston and crankshaft. Crankshaft rotates from explosions to create motion.Complete combustion happens when gasoline reacts with oxygen4 creating non-toxic products.

Apuntes

Primary pollutants come from incomplete combustion. They lead to secondary pollutants like O3 and NO2, causing acid rain and global warming. Internal combustion engines, diesel or gasoline, use the four-stroke Otto cycle for power in cars.Intake valve takes in air and gasoline. Spark plug ignites gasoline. Outlet valve releases combustion gases. Combustion chamber is where explosion occurs. Piston moves to change chamber size. Connecting rod links piston and crankshaft. Crankshaft rotates from explosions to create motion.Complete combustion happens when gasoline reacts with oxygen, creating non-toxic products. Incomplete combustion occurs when gasoline mixes with air and nitrogen. This creates compounds that enhance the greenhouse effectHeat engines using fossil fuels create pollutants like CO, CO2, and SO2. The Otto engine runs on gasoline, generating motion through explosions from air and gasoline reactions.