Calcium, magnesium, sodium, potassium are examples of
(a) Macrominerals
(b) Trace minerals
(c) Fibres
(d) none of these

Q. Explain the importance of the following minerals for the body.
(a) calcium
(b) sodium
(c) potassium
(d) iron

Q. Which sequence indicates correctly the increasing reactivity of metals?
(a) iron, zinc, magnesium, sodium, potassium
(b) sodium, potassium, magnesium, zinc, iron
(c) magnesium, potassium, sodium, iron, zinc
(d) iron, zinc, sodium, magnesium, potassium

Q. Which of the following minerals are required by our body?

Calcium, Phosphorus, Iodine, Potassium, Magnesium, Zinc, Iron

Q. What is a large group of minerals consisting of hydrated aluminosilicates of sodium, potassium, calcium, and barium called?

Q.

Which of the following is a mineral required by our body?

Calcium, Phosphorus, Iodine, Potassium, Magnesium, Iron