Marine pollution refers to a range of threats from land-based sources, and it generally involves contamination of bodies of water such as rivers, streams and oceans. Major causes of marine pollution include oil spills, u... More »

Marine pollution is the introduction of harmful contaminants into the marine ecosystem. Oil, untreated sewage and pesticides are just a few examples of the contaminants found in oceans and other marine environments. More » Science Environmental Science Conservation

The causes of litter pollution are passing motorists, pedestrians, retail outlets and gathering points. These are the key causes for litter on land. More »

Water gets polluted when waste or toxic substances mix with bodies of water, such as lakes, reservoirs, streams or rivers. Common water pollutants include chemical waste, pesticides and gasoline. More »

Water pollution can occur via several mechanisms, but the most common causes are dumping industrial waste and sewage into bodies of water, along with the use of toxic substances in agriculture that runs off into rivers. ... More »

Physical features in geography include bodies of water and landforms, for example, oceans, mountains, lakes, rivers, plateaus, plains, streams, hills, bays, gulfs, volcanoes, canyons, valleys and peninsulas are all vario... More »

Industrial pollution is the contamination of the environment by businesses, particularly plants and factories, that dump waste products into the air and water. Industrial waste is one of the largest contributors to the g... More »