Explanation

• Ozone (O₃) is mainly found in the Stratosphere, called the ozone layer.
  • It absorbs harmful ultraviolet (UV) radiation from the sun, protecting life on Earth.
  • Located roughly 15–35 km above the Earth’s surface.

Last verified on 17-01-2026

Explanation

• Sedimentary rocks are rocks formed by the deposition and compression of sediments over time.
• Also called stratified rocks because they are formed in layers (strata).
• Often porous, meaning they have small holes (pores) that can contain water or other fluids.

Additional information:

• Cover about 75% of the Earth's surface.
• Examples: Sandstone, Limestone, Shale.
• Usually softer and less dense than igneous rocks.

Explanation

• London is located in southeastern England on the River Thames.
  • London Tower is situated on the banks of the Thames.
  • Thames flows through central London, including Tower Bridge, London Eye, Tower of London.
  
  
  Additional information:
  River Thames facts:
  Part of the longest river system in England
  Has 45 locks
  Home to 25+ fish species

• Tower Bridge: movable double-leaf bascule bridge

Last verified on 17-01-2026

Explanation

• Abdul Kareem (Little Karim) was a mountaineer from Pakistan.
• Famous for climbing K2, the second-highest mountain in the world.
• Known as “Little Karim” due to his small stature but great climbing skills.

Additional information:

• Date of Birth: 1953/54
• Date of Death: April 4, 2022

Last verified on 17-02-2026

Explanation

• Theme 2022: “Forests and sustainable production and consumption”.
• International Day of Forests is celebrated every year on 21 March.
• It celebrated to raise awareness about forests and their importance.

Additional information:

• First celebrated by the United Nations in 2013.

Last verified on 17-01-2026

Explanation

The Taj Mahal in Agra, India.

It is turning yellow due to air pollution.

Main culprit: Sulphur dioxide (SO₂) from industrial emissions and vehicle smoke.

Additional information:

Taj Mahal made of white Makrana marble.

It was built in 1632–1647 by Emperor Shah Jahan.

Explanation

The Chenab River meets the Jhelum River at Trimmu (Punjab).

Chenab originates from the Chandra and Bhaga rivers in the Himalayas, India.

Flows through Jammu region and enters Punjab plains in Pakistan.

Total length: 1,200 km (750 mi) approx.

Historically called Asikni due to dark-colored waters.

Additional information:

• The area between Jhelum and Chenab is called Chaj Doab.
• Rachna Doab: Between Ravi and Chenab
• Bari Doab: Between Beas and Ravi

Last verified on 17-01-2026

Explanation

• Limestone is a sedimentary rock.
• It is formed mainly from the skeletal fragments of marine organisms such as coral and shells.
• It is commonly used in cement, construction, and soil treatment.
• It is main component is Calcium carbonate (CaCO₃).

Last verified on 17-01-2026

Explanation

Hosted by: Australia and New Zealand

• Winner: Spain
  Runner-up: England
  Third Place: Sweden
  Participating Teams: 32
  Total Matches: 64
  Total Goals: 164

Additional information:

• Top Scorer: Hinata Miyazawa (Japan) – 5 goals
• Best Player: Aitana Bonmatí (Spain)
• Best Young Player: Salma Paralluelo (Spain)
• Best Goalkeeper: Mary Earps (England)
• Official Mascot: Tazuni

Last verified on 17-01-2026

Explanation

The 2022 Winter Olympics were held in Beijing, China, from February 4–20, 2022.

Beijing became the first city to host both Summer (2008) and Winter Olympics.

Last verified on 17-01-2026

Olympic Games host cities