Final answer:
Anti-Reflective Coating, Scratch Resistant Coating, and UV Protective Coating are different types of optical coatings used on lenses, including sunglasses.
Step-by-step explanation:
Anti-Reflective Coating, Scratch Resistant Coating, and UV Protective Coating are different types of optical coatings used on lenses, including sunglasses. Anti-Reflective Coating reduces the amount of light reflected off the lens, allowing more light to pass through and improving visibility. Scratch Resistant Coating is applied to the lens surface to increase its durability and protect against scratches. UV Protective Coating blocks harmful UV rays from reaching the eyes, providing additional protection.