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Mounted atop the engine block, the cylinder head contains the intake and exhaust valves. Its primary function is to seal the upper end of the cylinders. The cylinder head also houses the combustion chamber where the fuel-air mixture ignites, producing the power needed to drive the vehicle. Furthermore, the cylinder head contains spark plugs that ignite the air-fuel mixture in gasoline engines, or the injectors in diesel engines.


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However, with these advancements come challenges that require careful navigation. The concept of identity may evolve radically, questioning the essence of being human. As transhumanism gains traction, societies may face fundamental ethical dilemmas regarding the definition of life and the rights of artificially enhanced beings. Furthermore, environmental considerations will be paramount. A world in 215 must address the consequences of climate change and resource depletion, fostering a symbiotic relationship with nature to ensure sustainability.


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