Accidental discharge of petroleum in oceans or estuaries are called ______.

Industrial Wastes

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Thermal pollution

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Oil spill

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Sewage

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Solution

The correct option is C
Oil spill

Oil spills are caused due to accidental discharge of petroleum into the water bodies. The sources can be overturned oil tankers, offshore oil mining, and refineries. It results in the death of a number of aquatic animals.

Suggest Corrections

	Column I (Pollutants)		Column II (Source)
(a)	Toxic heavy metals	(i)	Domestic sewage
(b)	Microorganisms	(ii)	Industries and chemical factories
(c)	Organic wastes	(iii)	Chemical fertilizers
(d)	Plant nutrients	(iv)	Discharge from food processing factories