Explanation

196/4 = 49 students per row.

49 * 11 = 539.

Explanation

5.2% of 500 = (5.2 / 100) × 500 = 26

It’s a direct percentage calculation.

Explanation

√2304 = √(48²) = 48

Explanation

Dry ice sublimation is a physical change where solid CO₂ directly turns into gas without changing its chemical composition.

Rusting of iron, burning of wood, and cooking of egg are all chemical changes, where new substances are formed.

Explanation

The main enzyme used to make cheese is rennet (also known as rennin).

Rennet is a milk-clotting enzyme that causes milk to curdle, which is a crucial step in cheese production. 

Explanation

Let's find the new quantity:

Original quantity = 376

Ratio = 5:8

New quantity = (5/8) * 376

= 235

Explanation

He was tired, so he took a nap.

A comma is needed before "so" when it connects two independent clauses.

Explanation

A CT (Computed Tomography) scan uses X-rays and computer processing to create detailed cross-sectional images of the body.

It helps in diagnosing various conditions by providing more detailed images than regular X-rays.

Explanation

"So far" is used to refer to something that has happened up until the present moment.

So far means اب تک

Explanation

Area of parallelogram = base × height = 16 × 9 = 144 cm²

Area of square = side² → side = √144 = 12 cm