Q. CFCs depletes ozone layer in the

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Q. Non calcareous fouling organisms are seaweeds, algae and

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Q. Exotic species are also known as

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Q. Largest form of an aquatic pollution is defined as

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Q. Non indigenous species are also known as

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Q. Calcareous fouling organisms, examplified as barnacles, bryozoans and

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Q. Bilge water contains oil, urine and

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Q. Both, calcareous and non calcareous organism forms

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Q. When mercury is being heated, it has become colorless and

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Q. MeHg stands for

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Q. About 0.25-0.5 ppm of cadmium is originated from

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Q. About 20-90 ppm cadmium is emitted from

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Q. In living organisms, high cadmium leads to cancer, hypertension and

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Q. In nature, mercury is found in different forms, such as elemental, metallic and

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Q. methylated forms of mercury, easily taken up by organisms, approaching

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Q. Cadmium is a chemical element, material is used in

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Q. Lead usually becomes grayish, after being exposed to

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Q. Almost, 85% of cadmium is used in rechargeable nickel

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Q. Lead is used in building construction, lead-acid batteries, and

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Q. Metallic mercury is being characterized as a

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