Following are the properties of four minerals P, Q, R and S. identify them and select the correct option. P: It is required for proper functioning of thyroid gland. Q: It helps in maintaining body's water balance, R: It is important for haemoglobin formation. S: It strengthens bones and teeth and helps in blood clotting.

Deficiency of P causes dryness of eyes and inflammation of tongue,

O is also required for the proper functioning of nervous system.

(d) S also helps to fight infections and keeps skin and mouth healthy.

Following are the properties of four minerals P, Q, R and S. identify

1.	Following are the properties of four minerals P, Q, R and S. identify them and select the correct option. P: It is required for proper functioning of thyroid gland. Q: It helps in maintaining body's water balance, R: It is important for haemoglobin formation. S: It strengthens bones and teeth and helps in blood clotting.
A.	Deficiency of P causes dryness of eyes and inflammation of tongue,
B.	O is also required for the proper functioning of nervous system.
C.	Only (ii) and (iii)
D.	(d) S also helps to fight infections and keeps skin and mouth healthy.
Answer» C. Only (ii) and (iii)

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