Explanation

Over 6000 languages are spoken globally, including many with distinct dialects and regional variations.

This linguistic diversity is mainly concentrated in Asia and Africa, where countries like Papua New Guinea alone have over 800 languages.

Explanation

In 1961, under Ayub Khan’s regime, the Muslim Family Laws Ordinance was introduced.

It made registration of marriages compulsory in the Union Council to maintain official records and prevent disputes.

Explanation

The formula to find the arc length (I) is:

I = rθ

Given values:

I = 30 cm

r = 6 cm

Rearrange the formula to solve for θ:

θ = I / r

= 30 / 6

= 5 radians

Explanation

This is the cow that lows.

"Cow" is singular, so the verb must be "lows" (singular form).

"That" is correctly used for animals in defining clauses.

Explanation

Hazrat Abu Bakr (RA) paid the cost of the land purchased for the construction of the Prophet's Mosque (Masjid-e-Nabvi) in Medina.

The land was initially owned by two orphans, and Hazrat Abu Bakr (RA) helped buy it for the mosque.

Explanation

Expansion of metal on heating is a physical change because it does not alter the metal’s chemical composition.

When cooled, the metal returns to its original size, showing that the change is reversible.

Explanation

A catalyst speeds up the rate of reaction but does not affect the position of equilibrium.

Temperature, pressure, and concentration can shift the equilibrium position of a reversible reaction.

Explanation

The union of two sets A and B (denoted as A ∪ B) includes all elements that are in A, in B, or in both.

It represents the total collection of elements from both sets without repetition.

Explanation

ü  Pakistan has been hosting the maritime multinational naval drill ‘AMAN’ since 2007.

ü   Participant: British, the U.S., Turkish, Chinese, Japanese, Russia, and other forces.

ü  AMAN-21 is the 7th Multinational Maritime Exercise.

Explanation

In table tennis, the free hand refers to the hand that is not holding the racket.

It cannot touch the table while the ball is in play, according to official rules.