Explanation

• Hagia Sophia is located in Istanbul, Türkiye.
• It was completed in AD 537 during the Byzantine era.
• Originally, it was a Greek Orthodox church.
• Later, it was converted into a mosque, then a museum.
• In 2020, Hagia Sophia was reconverted into a mosque.

Last verified on 29-01-2026

Explanation

• Smog is a combination of smoke and fog.
• The word smog is formed from smoke + fog.
• It is a type of air pollution that reduces visibility and can harm human health.
• Smog is commonly associated with vehicle emissions and industrial pollutants.

Last verified on 06-10-2026

Explanation

• The Quran describes mountains as “pegs” (أَوْتَادًا).
• Surah An-Naba (78:7): “And the mountains as pegs.”
• The verse highlights the distinctive structure and role of mountains in the Earth.
• Surah An-Nahl (16:15) also mentions mountains being placed in the earth so that it would not shake with you.

Last verified on 06-10-2026

Explanation

• A Client Operating System is designed for personal computers and end users.
• It is used for daily tasks like browsing, gaming, and office work.
• Windows 10 is a popular client OS by Microsoft.
• It runs on desktops and laptops.

Last verified on 26-05-2026

Explanation

• An intransitive verb does not require a direct object to complete its meaning.
• It expresses an action or state that does not pass directly to an object.
• Example: “The baby cried.” Here, “cried” does not need a direct object.

Last verified on 06-10-2026

Explanation

• The subjunctive mood uses "were" for hypothetical situations, even with singular subjects.
• So, "If I were rich" is grammatically correct.

Last verified on 07-09-2026

Explanation

Just as gloves are worn on hands, shoes are worn on legs (specifically feet).

This is a relationship of covering or wearing.

Last updated on 22-07-2026 by NA

Explanation

• Complete Saying: "Don’t count your chickens before they hatch."

Meaning:

• Don’t make plans based on future outcomes that may not happen.

Last verified on 06-10-2026

Explanation

• Qutb ud-Din Aibak was the first independent Muslim ruler of Delhi 
• Founder of the Mamluk (Slave) Dynasty
• He was the general of Muhammad Ghori.
  

Additional information

• Al-khafif was the first ruler of the Soomra dynasty (1011-1026)
• Mughal emperor Akbar was the first Muslim 
• Razia Sultana, the first woman ruler of India

Explanation

• The SI unit of power is the watt (W). 
• A watt is equal to one joule of work done per second. 
• Symbol: W
• Definition: 1 watt = 1 joule per second
• Named after: James Watt

Last verified on 05-10-2026