Question

The sea water gets polluted mainly due to
A. Industrial waste.
B. Oil spills.
C. Death of marine fauna.
D. None of these.

Answer 1

Hint: Anything that contaminates the sea can be referred to as marine or seawater pollution. An oil spill is defined as the discharge or flees of oil into the sea or another body of water. In other words, oil spills are the contamination of water bodies caused by the spilling of oil due to human carelessness or an accident.

Complete step-by-step answer:

Water pollution is caused by human actions that generate domestic sewage as well as toxic waste, which contaminates water with disease-causing microorganisms and poisonous substances. Oil spills are just another cause of water pollution, with devastating results for surrounding ecosystems.

Oil spills from ships and tankers while travelling pollutes the seawater. The oil spilt doesn't really dissolve into the water and instead produces a thick sludge that pollutes the water. Oil spills have a variety of effects on water quality.

Oil spills at sea are much more damaging than other factors that pollute seawater because they can be scattered for hundreds of nautical miles in a thin oil slick, covering beaches with a thin coating of oil. These coatings can kill seabirds, mammals, shellfish, and other organisms.

Oil is a complex mix of hydrocarbon compounds that are the dead remnants of marine plants and animals that died and sank to the ocean floor. A terrible oil spill causes significant harm to the marine surroundings and, in some cases, results in the extinction of an entire species.

Hence, option B is correct.

Note: It's not like industrial waste does not pollute sea water but oil spills in the seawater pollute it to a greater extent than any other factors or source whereas marine fauna itself is a victim of oil spills.