Why does my car not start, although it has fuel compression and sparks?

Our cars rely on a delicate balance of systems in order to start and run smoothly. While fuel, compression, and sparks are necessary components, there could be an issue with one or more of these elements, as well as other factors. It could be a problem with the fuel pump or the ignition system. Another possibility is that the car's battery is dead or unable to hold a charge. A common issue is dirty spark plugs, causing them to misfire and preventing the engine from starting.