Used in steel production to enhance strength and hardness. Activated carbon serves in water and air purification due to its high adsorption capacity. Found in electrodes for batteries and fuel cells, supporting energy storage and conversion. Employed in filters for removing impurities and odors in industrial and medical settings. Used in the form of graphite for lubricants and in pencils. Diamond form is utilized in cutting, grinding, and drilling tools. Also used in carbon black for inks, tires, and pigments. Plays a key role in organic chemistry as the backbone of all living molecules.