Milk is a rich source of which of the following minerals?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Calcium
Minerals are the inorganic elements, such as calcium, phosphorus and iron, that the body needs in small amounts. Milk is one of the richest sources of calcium in the diet: about 120 mg in every 100 ml, together with phosphorus. Calcium builds and keeps bones and teeth strong and is also needed for muscles to contract and for blood to clot.
Why the other options are incorrect
Option (1) Water — Incorrect. Water makes up most of milk, but it is a compound, not a mineral.
Option (3) Fats — Incorrect. Milk fat is a lipid, a nutrient that gives energy, not a mineral.
Option (4) Sugar — Incorrect. The sugar of milk, lactose, is a carbohydrate, not a mineral.