Explanation

• Main Cause: Freon / CFCs
• Effect: Breaks down O₃ molecules → more UV-B radiation
• Other Contributors: Halons, carbon tetrachloride
• Result: Skin cancer, cataracts, climate impact

• The Montreal Protocol (1987) aimed to reduce CFC emissions
• Ozone layer protects Earth from harmful ultraviolet rays

Explanation

• Copper (تانبا) is a good conductor of electricity.
• It allows electric current to flow easily.

Additional information:

• Metals are generally good conductors.
• Non-metals usually do not conduct electricity.
• Good Conductors: Copper, Silver, Gold, Aluminum, Graphite
• Bad Conductors: Plastic, Rubber, Wood, Glass, Air

Last verified on 07-06-2026

Explanation

Pakistan won the Cricket World Cup in 1992

Edition: Fifth

Format: One Day International (ODI)

Venue: Australia & New Zealand

Final held: 25 March 1992

Final Venue: Melbourne

Winner: Pakistan (First title)

Runners-up: England

Participating teams: 09

Total Matches: 39

Most wickets taken by: Wasim Akram (18 wickets)

**** 

Question updated on 11-02-2026

Explanation

• The Battle of Badr was fought in the year 2 AH (After Hijrah)
• Islamic Date: 17 Ramadan, 2 AH
• Gregorian Date: March 13, 624 CE
• Place: Badr (near Madinah)
• Between: Muslims and Makkans (Quraysh)
• Muslim Leader: Muhammad (SAW)
• Muslims: around 313 soldiers
• Number of Muslim martyrs: 14
• Quraysh Army: around 1000 soldiers
• Muslim horses: 2
• Muslim camels: around 70

Last updated by NA on 09-09-2026

Explanation

• The Pacific Ocean is the largest and deepest ocean on Earth.
• It covers about 30% of the Earth's surface.
• It contains 97% of the Earth's water.
• The Mariana Trench, the deepest part of the ocean.
• It is located in the Pacific.
• The Arctic Ocean is connected to the Pacific Ocean via the Bering Strait.

Additional information:

• Oceans cover 71% of the Earth's surface.
• The Indian Ocean is the warmest, with the Persian Gulf being the hottest area.
• The Diamantina Trench is the deepest point in the Indian Ocean.
• Jordan does not have an ocean.
• The Arctic Ocean is the Smallest Ocean of the world.

Last verified on 27-05-2026

Explanation

• Khewra Salt Mine is located in Khewra near Pind Dadan Khan, Jhelum District, Punjab.
• It is the largest and oldest salt mine in Pakistan.
• It is the second-largest in the world.

Additional information:

• It is also called the Mayo Salt Mine.
• The salt deposits were discovered during the campaign of Alexander the Great in 326 BC.
• The mine was officially opened in 1872 during the British period.

Last verified on 14-03-2026

Explanation

• UNO Founded: 24 October 1945 (after World War II 1939–1945)

Additional information:

• UNO Stands for: United Nations Organization
• Headquarters: Manhattan, New York City
• Member States: 193 countries
• Official Languages (6): Arabic, Chinese, English, French, Russian, Spanish
• Motto: “It’s your world!” (commonly used awareness slogan)
• Pakistan Joined UNO: 30 September 1947

Last verified on 10-06-2026

Explanation

• Headquarters: Jeddah, Saudi Arabia
• OIC stands for Organization of Islamic Cooperation.
• Foundation Date: 25 September 1969
• Official Languages: Arabic, English, French
• Total Members: 57 countries
• First Summit: Rabat, Morocco
• Significance: Largest international organization after the UN.

Last verified on 10-05-2026

Explanation

Total age of 5 members = 5 x 21 = 105

Average of 6 members = 21 + 9 = 30

Total age of 6 members = 6 x 30 = 180

Age of grandfather = 180 - 105 = 75 years

Explanation

• Charles Babbage is known as the Father of the Computer.
• He designed the more advanced Analytical Engine, which featured a "Mill" (CPU) and a "Store" (memory).

Additional information:

• He was an English polymath.
• Born: 26 December 1791 London, England
• Died: 18 October 1871 (aged 79) London, England

Last updated by NA on 06-11-2026