Many large quantities of pollutants and by-products enter the sea from municipal, industrial, agricultural, and military sources in a wide variety of ways - by means of rivers, pipelines, through shipping, through the recovery of mineral raw materials from the sea, and even from the atmosphere.
Izinto ezingcolisayo ezininzi ezinkulu kunye nezinto ezikuyo eziphuma kuzo zingene elwandle zisuka kumasipala kushishino kwezolimo nakumkhosi, uluhlu olude lweendlela ezahlukeneyo ngoncedo lwemilambo lwemibhobho ngoshishino ngeenqanawa ngokufunyanwa kwezimbiwa eziyimveliso elwandle kanti novela kumoya ojikelezayo umhlaba