Explanation

• Hydrogen and helium are the two lightest gases.
• Helium is the second most abundant element in the universe, after hydrogen.
• Helium has monatomic molecules.
• It is the lightest of all gases except hydrogen.
• Hydrogen is the lightest gas known.
• It provides the maximum lift for balloons due to its very low density.

Last updated question 17-02-2026

Explanation

• Carbon dioxide (CO₂) is used in fire extinguishers.
• It extinguishes fire by displacing oxygen and cooling the burning material.
• CO₂ fire extinguishers are especially effective for electrical and flammable liquid fires.
• Carbon dioxide is a colorless and non-flammable gas.
• It leaves no residue after use.

Explanation

• Vitamin C deficiency causes scurvy.
• It can cause bleeding/loose gums, easy bruising, and poor wound healing.
• Other signs include rough skin, corkscrew hair, and red spots around hair follicles.
• Rickets is mainly caused by Vitamin D deficiency.

Last verified on 13-09-2026

Explanation

• The headquarters of the International Court of Justice is in The Hague, Netherlands.
• ICJ is one of the six principal organs of the United Nations.
• It consists of 15 judges, elected for 9-year terms.

• Founded: 1945
• Official Languages: English, French
• Member States: UN member countries
• Main Function: Settling legal disputes between states

Explanation

• Urdu is the national language of Pakistan.
• Article 251: The 1973 Constitution of Pakistan formally declares Urdu as the national language

Additional information

• National Animal: Markhor
• National Tree: Deodar
• National Dish: Nihari
• National Fruit: Mango
• National Flower: Jasmine
• National Vegetable: Lady Finger (Okra)
• Field hockey is Pakistan's official national sport.

Last updated by NA on 09-09-2026

Explanation

• Prophet Musa (A.S) is mentioned about 136 times in the Holy Qur’an.
• Prophet Musa (A.S) was given the Torah (Tawrat) as a divine book.
• He is one of the Ulul-Azm prophets (the prophets of strong determination).

Additional information:

• Ibrahim (A.S) – about 69 times
• Nuh (A.S) – about 43 times
• Lut (A.S) – about 27 times
• Isa (A.S) – about 25 times

Last verified on 14-03-2026

Explanation

• Hazrat Umar conquered Bait Ul Maqdas in 15 A.H.
• Umar ibn Abd al-Aziz, commonly known as Umar II, was the eighth Umayyad caliph.
• Umar ibn Abd al-Aziz called the first Mujaddid.
• He was sixth righteous caliph of Islam after Hasan Ibn Ali.
• Umar ibn Abd al-Aziz was born on 2 November 682 in Medina, Umayyad Caliphate.
• Died on 5 February 720 (aged 37).

Last verified on 06-09-2026

Explanation

• USB stands for Universal Serial Bus.
• USB is a standard used to connect and transfer data between electronic devices.
• A USB flash drive is a data storage device that uses flash memory with an integrated USB interface.
• Ajay Bhatt is widely credited as a key figure in the development of USB technology in the 1990s.

Last verified on 05-09-2026

Explanation

• FIR stands for First Information Report.
• It a document prepared by police under Section 154 of the Code of Criminal Procedure (CrPC) 1898.
• It starting criminal proceedings in cognizable cases.

Last verified on 11-05-2026

Explanation

• The Line of Control (LoC) was established in 1949 after the Karachi Agreement.
• It was following the first Indo-Pak war over Kashmir.
• It was originally called the Ceasefire Line and renamed the LoC in the 1972 Simla Agreement.
• The LoC is approximately 740 km long.

Last verified on 03-09-2026