Explanation

Carbohydrates are the body’s primary and quickest source of energy, especially glucose.

They are broken down during cellular respiration to release ATP (energy).

Explanation

ROM (Read-Only Memory) contains the firmware or BIOS needed to boot the computer.

It is non-volatile, meaning it retains data even when the power is off.

Explanation

A catalyst speeds up a chemical reaction without being consumed in the process.

It lowers the activation energy, allowing the reaction to occur faster.

Explanation

Genghis Khan founded and led the Mongol Empire in the early 13th and 14th centuries.

It was the largest contiguous land empire in history.

Founded: 1206

Date dissolved: 1368

Explanation

Variety means مختلف اقسام یا اقسام کی ایک حد

One and the same kind means تنوع یا فرق کی کمی

Explanation

The volume of a cube is given by:

V = side³

= 5³

= 5 × 5 × 5

= 125 cm³

Explanation

Given a and b are integers and b ≠ 0:

a/b represents a Rational number.

A rational number is a number that can be expressed as the ratio of two integers, where the denominator is non-zero.

Explanation

Pakistan has three branches of government:

1. The Legislative Branch makes the laws.
2. The Executive Branch carries out the laws.
3. The Judiciary Branch evaluates and interprets the laws.

The Legislative Branch, or Parliament, has two houses: the National Assembly and the Senate

1. National Assembly: It makes laws for the federation and keeps a check over the Executive. 

2. The Senate is the body that represents the provinces and promotes a feeling of equality, peace, and harmony.

Explanation

De Morgan's first law states that the complement of the union of two sets A and B is equal to the intersection of their complements.

The correct representation is:

(AUB)' = A' ∩ B'

Explanation

To divide fractions, we invert the second fraction and multiply:

1/5 ÷ 1/25 = 1/5 × 25/1

= 25/5

= 5