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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Q. Almost, 30ppm, a sewage sludge emits

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Q. Mercury can cross cell membrane and interfers in

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Q. Cd causes endocrine disruption in

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Q. In sea, dissovled mercury ions are easily absorbed in

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Q. Almost, 75% of mercury in marine environment originated from natural sources, such as

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Q. Mercury-based fever thermometers are being banned in the

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Q. Mercury is used in calomel electrodes, mirror telescopes and

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Q. DMHg stands for

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Q. Lead has become in bluish-white color, after being freshly

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Q. Lead can be dramatically damaged neural pathways, causing

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Q. Corrosion of galvanised metals, emitting 0.2%

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Q. Antiseptic mercurochrome and use of thiomersal in preservation of vaccines are

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Q. Mercury form complexes with organic molecules in sea, such as cysteine residues and

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Q. Mercury is in a liquid form at

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Q. Phosphate fertilisers, emitting

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Q. Mercury is characterized as a cinnabar known as

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