निर्माण सामग्री में होने क – McqOptions

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1.	निर्माण सामग्री में होने के कारण हाल ही में कौन सा रेडियोधर्मी प्रदूषक जनता की ओर आकर्षित हुआ है?
A.	थोरियम
B.	रेडियम
C.	प्लूटोनियम
D.	रादान
Answer» B. रेडियम

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