Explanation

• World Environment Day is on 5 June.
• First observed in the city of Spokane in the USA in 1974.
• Established by the UN General Assembly in 1972.
• It is also called Eco Day.

Additional information:

Theme:

• 2020: Time for Nature in Colombia
• 2021: Ecosystem restoration in Pakistan
• 2022: Only One Earth in Sweden
• 2023: Solutions to Plastic Pollution in the Ivory Coast
• 2024: Land restoration, desertification, and drought resilience in Riyadh, Saudi Arabia
• 2025: Ending plastic pollution in South Korea

Last verified on 04-06-2026

Explanation

• Author: J. K. Rowling
• Full Name: Joanne Rowling
• Born: 1965
• Birth Place: United Kingdom
• Profession: Author, Screenwriter
• Harry Potter series has 7 main books.
• First book: Harry Potter and the Philosopher’s Stone (1997).

Last verified on 04-04-2026

Explanation

• Became separate province: 1 April 1936, capital Karachi
• Annexed to Bombay Presidency: 1843
• Part of Pakistan: 14 August 1947 – 14 October 1955, capital Hyderabad
• Separation demanded by: Muhammad Ali Jinnah in 1929 under Government of India Act 1935
• First Muslim League Government in Sindh: 1943

Last verified on 15-01-2026

Explanation

Turkey Capital is Ankara.

Turkey Currency is Turkish Lira.

Turkey official language is Turkish.

Turkey located is in Continent Europe/ Asia.

Turkey Primary Religion is Islam (But Secular country).

Turkey Head of Govt. is President – Recep Tayyip Erdoğan.

Turkey Parliament called Grand National Assembly.

Last verified on 07-03-2026

Explanation

• Justice Ayesha Malik became the first female judge of the Supreme Court of Pakistan.
• She was sworn in on 24 January 2022 by Chief Justice Gulzar Ahmed.
• Previously, she served at Lahore High Court (March 2012 – Jan 2022).

Additional information:

• Appointed by: President Arif Alvi
• Tenure: Until June 2031
• Supreme Court judges total: 17
• Retirement age: Supreme Court – 65, High Court – 62

Last verified on 18-03-2026

Explanation

• Diamond is a naturally occurring allotropic form of carbon.
• Allotropy means a single element can exist in more than one form with different structures and properties.
• It is extremely hard.
• It has a high melting point.
• It is widely used in jewelry and cutting tools.

Additional information:

• Graphite – soft, good conductor
• Fullerenes (C60) – spherical molecules
• Carbon nanotubes – tubular, high strength
• Amorphous carbon – coal, soot
• Lonsdaleite – hexagonal diamond

Last verified on 17-01-2026

Explanation

• Author: Stephen Hawking
• Book Title: A Brief History of Time
• Main Topic: Universe (origin, structure, evolution, and fate)
• First Published: 1988
• Publisher: Bantam Dell Publishing Group
• Copies Sold: ~10 million
• Languages: 40 languages

Last verified on 01-06-2026

Explanation

• Nicolaus Copernicus is called the Father of Modern Astronomy.
• He introduced the heliocentric theory in 1543.
• This theory stated that the Sun is at the center of the solar system.
• His ideas changed the old belief that Earth is the center.

Additional information:

• Galileo Galilei, a later figure, is often called the "father of observational astronomy".

Last verified on 01-06-2026

Explanation

• The Earth’s circumference at the equator is about 40,075 km (24,901 miles).
• Measured through the poles, it is slightly smaller: 40,008 km (24,860 miles).
• The difference is due to the equatorial bulge caused by Earth's rotation.
• Diameter: ~12,756 km (7,926 miles).
• Age of Earth: ~4.453 billion years.

Last verified on 31-03-2026

Explanation

• The largest planet in our solar system is Jupiter.
• 5th planet
• 79 known moons (Maximum number of moons)
• The Great Red Spot is a prominent feature
• Giant planet and the fastest-rotating planet 
• Rotates approximately once every 10 hours.
• Age is about 4.603 billion years.

Additional information

• Mercury is the smallest planet of the solar system.

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Last updated by NA on 25-April-2026