Contaminants in the air, ground, or water that come from a single identifiable cause what?

Had to look for the options and here is my answer.
Those contaminants that came from water, air, and ground, that has a single source would result in POINT-SOURCE POLLUTION. Point-source pollution has already been identified by The U.S. Environmental Protection Agency or the EPA. Hope this helps.

Answer: the philippines has suffered from an inexhaustible number of deadly typhoons, earthquakes, volcano eruptions and other natural disasters. this is due to its location along the ring of fire, or typhoon belt – a large pacific ocean region where many of earth's volcanic eruptions and earthquakes occur.