GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Thorium
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Radium
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Plutonium
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Radan
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Detailed explanation-1: -Thorium radioactive pollutant has recently drawn attention of public due to its occurrence in the building material. Thorium is a naturally-occurring, slightly radioactive metal discovered in 1828 by the Swedish chemist Jons Jakob Berzelius, who named it after Thor, the Norse god of thunder.
Detailed explanation-2: -Radioactive materials in sandstone, concrete, brick, natural stone, gypsum, and granite contain naturally-occurring radioactive elements like radium, uranium, and thorium. These naturally-occurring elements can break down or decay into the radioactive gas radon.
Detailed explanation-3: -Strontium-90 is a highly dangerous radioactive pollutant.
Detailed explanation-4: -What are Radioactive Pollutants? Radioactive Pollutants: Radioactive contamination sources include the mining and testing of radioactive materials, nuclear power stations, nuclear weapons as well as medical diagnostics and treatment procedures.