Explanation

• Name: Trygve Halvdan Lie
• Tenure: 1 Feb 1946 – Nov 1952
• Nationality: Norway
• Organization: United Nations (UNO)
• Role: First administrative head of the UN after its formation

Additional information:

UNO Secretary-General List:

1. Trygve Lie (1st)
2. Dag Hammarskjöld (2nd)
3. U Thant (3rd)
4. Kurt Waldheim (4th)
5. Javier Pérez de Cuéllar (5th)
6. Boutros Boutros-Ghali (6th)
7. Kofi Annan (7th)
8. Ban Ki-moon (8th)
9. António Guterres (9th/Current)

Last verified on 16-05-2026

Explanation

• The Mariana Trench is the deepest part of the Earth.
• It is located in the western Pacific Ocean.
• Its deepest point is called Challenger Deep.

Additional information:

• Depth: 10,994 meters
• Length: ~2,550 km
• Width: ~69 km

Last verified on 31-03-2026

Explanation

• A reflex action is a quick, automatic response to a stimulus.
• It is mainly controlled by the spinal cord, which is part of the central nervous system.
• This allows fast response without involving the brain immediately.
• Thus, reflexes are coordinated by the central nervous system.

Last verified on 23-04-2026

Explanation

• The Sui Gas Field, located near Sui in Balochistan Province, Pakistan.
• It was discovered by Pakistan Petroleum Limited in 1952.
• Production of Sui gas began in 1955.
• It remains the largest natural gas field in Pakistan.

Explanation

• Founder: Mark Zuckerberg
• Founded in: February 4, 2004
• Headquarters: Menlo Park, California, USA
• Users (2023): Over 3 billion monthly active users
• Parent Company: Meta Platforms Inc.

Last verified on 16-01-2026

Explanation

The 38th parallel is a name given to the latitude 38° N, which demarcates North Korea and South Korea.

ADDITIONAL INFORMATION RELATED TO 38th parallel 

The line was demarcated by U.S. military planners at the Potsdam

It was established at the end of World War II.

It is the symbol of the Cold War.

It is a circle of latitude 38 degrees north of the equator.

Explanation

A liquid-crystal display  is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers.

Liquid crystals do not emit light directly,instead using a backlight or reflector to produce images in color or monochrome.

Explanation

Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

Explanation

Peace pipeline is an under-construction 2,775-kilometre pipeline

This delivers natural gas from Iran to Pakistan.

Inaugurated by the president of Pakistan, Asif Ali Zardari, andthe  President of Iran Mahmoud Ahmadinejad

Founded on March 11, 2013

Explanation

After nine years of efforts, Pakistan was successful in framing a constitution.

The Constituent Assembly adopted it on 29 February 1956

it was enforced on 23 March 1956 proclaiming Pakistan to be an Islamic republic.

This constituent consists of:

234 Articles divided into 13 parts and 6 schedules.

23rd March became our Republic day

In 1957 Pakistan officially renamed the Islamic Republic of Pakistan