Explanation

• Europe is the only continent without a desert.
• It has a temperate climate with sufficient rainfall.

Additional information:

• Divided by the Ural Mountains
• Second-smallest continent
• Covers 2% of Earth’s surface
• Area: 10.18 million km²

Last verified on 16-01-2026

Explanation

• Madam Marie Curie was the first woman to win the Nobel Prize.
• First Nobel Prize: Physics (1903)
• Second Nobel Prize: Chemistry (1911)
• She is best known for her pioneering research on radioactivity.
• She discovered the elements Radium and Polonium.

Additional information:

• Wilhelm Conrad Röntgen (Germany) was the first male Nobel Prize winner.
• He received the first Nobel Prize in Physics in 1901.
• He was awarded for the discovery of X-rays (1895).

Verified & Updated

Explanation

• The highest waterfall in the world is Angel Falls.
• Country: Venezuela
• Elevation: 1,283 metres
• Height: 979 metres
• Longest drop: 807 metres
• The waterfall is named after Jimmie Angel, a U.S. aviator who was the first person to fly over the falls.

Last verified on 27-09-2026

Explanation

• The 49th Parallel is an important latitude line in North America.
• It forms most of the border between the USA and Canada.
• It was established through historical agreements between the two countries.
• It is one of the longest straight international borders in the world.
• It separates southern Canada from northern United States.

Last verified on 16-05-2026

Explanation

• Burj Khalifa is located in Dubai, United Arab Emirates.
• Floors: 163
• It is the world’s tallest building.
• Height: 828 meters (2,717 feet)
• Construction began in 2004 
• Opened: January 4, 2010

List of the tallest buildings in the world.

Explanation

• Uruguay won the first-ever FIFA World Cup in 1930.
• The inaugural FIFA World Cup was hosted by Uruguay.
• Uruguay defeated Argentina 4–2 in the final.
• The tournament was held from 13–30 July 1930.

Additional information:

• 2022 → Argentina 🇦🇷 — defeated France in the final.
• 2018 → France 🇫🇷
• 2014 → Germany 🇩🇪
• 2010 → Spain 🇪🇸
• 2006 → Italy 🇮🇹

Last verified on 26-09-2026

Explanation

• China: Largest cotton-producing country.
• Textile Industry: 7,500 companies.
• Annual Production: US $73 billion of cotton cloth.

Additional information:

• India: Second largest cotton producer.
• USA: Third largest cotton producer.

Last verified on 23-01-2026

Explanation

• The United States is the world's largest crude oil-producing country.

Additional information:

• United States – 18.60 million barrels/day (mb/d)
• Saudi Arabia – 11.01 mb/d
• Russia – 10.50 mb/d
• Canada – 5.29 mb/d
• Iraq – 4–5 mb/d

Last updated 25-07-2026 by NA

Explanation

• China has the world's biggest army by active military personnel.

Additional information:

Top Militaries by Active Personnel (2025 estimates): 

1. China: ~2.035 million
2. India: ~1.46 - 1.475 million
3. United States: ~1.3 - 1.4 million
4. North Korea: ~1.28 million
5. Russia: ~1.1 - 1.3 million

Explanation

• First Polio Vaccine Introduced: 1955
• Developer: Dr. Jonas Salk
• Type: Inactivated Polio Vaccine (IPV)
• Oral Polio Vaccine (OPV): 1961
• Developer of OPV: Dr. Albert Sabin

Last verified on 20-07-2026