Activated charcoal traps impurities in water including solvents, pesticides, industrial waste and other chemicals. This is why itâs used in water filtration systems throughout the world. However, it doesnât trap viruses, bacteria and hard-water minerals.
A proper noun or proper name is a noun representing unique entities (such as India, Jupiter, Harry, or BMW), as distinguished from common nouns which describe a class of entities (such as city, animal, planet, person or car).
Definition of proper adjective. : an adjective that is formed from a proper noun and that is usually capitalized in English.