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Question

Which of the following metals causes harmful effects?


A

Lead

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B

Cobalt

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C

Uranium

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D

All of the these

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Solution

The correct option is D

All of the these


Radiations from the nuclides of radioactive elements like radium 224, uranium 235, uranium 238, thorium 232, radon 222, potassium 40 and carbon 14 present in the rocks, soil and water cause radioactive pollution. Radioactive lead, cobalt and uranium can bring about adverse effects on human health.


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