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Q.

Kerala's monazite sands are rich in minerals.


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a

Uranium

b

Thorium

c

Platinum

d

Coal 

answer is B.

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Detailed Solution

The monazite sands of Kerala are rich in Thorium. Helium is abundant in monazite and can be recovered through heating due to Thorium and uranium's alpha decay. Thorium, lanthanum, and cerium-rich minerals include monazite. Placer deposits are a common area to find it. India, Madagascar, and South Africa are all rich in monazite sands. Monazite is a brown crystalline mineral composed of Thorium, cerium, lanthanum, and other rare earth elements.
 
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