Which of the following substances are found in the beach sands of many parts of Kerala?
1. Ilmenite
2. Zircon
3. Silimanite
4. Tungsten
A. 1, 2, 3 and 4
B. 1, 2 and 3
C. 3 and 4 only
D. 1 and 2 only
Answer: Option B

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