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

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

Explanation

Passed In National Assembly: May 24th, 2018

In Senate: May 25th, 2018

In Provincial Assembly of Khyber Pakhtunkhwa: May 27th, 2018

Assented to May 31st, 2018

Explanation

•  On 3 December 1967, the world's first human-to-human heart transplant was performed by Dr. Christiaan Barnard
• at Groote Schuur Hospital in Cape Town, South Africa.
  
• Barnard performed a heart transplant on his patient, Louis Washkansky.
•  Louis Washkansky, 53, with heart failure the donor, Denise Darvall, was just 25.

***

ND3-12-2022

Explanation

Trachoma is a disease of the eye

It is caused by infection with the bacterium Chlamydia trachomatis.

It is a public health problem in 38 countries and is responsible for the blindness or visual impairment of about 1.9 million people

Explanation

The First Amendment to the Constitution of Pakistan, enacted on May 4, 1974, redefined Pakistan's boundaries and eliminated references to East Pakistan.

The amendment also redefined Pakistan's federal and naval treaties.

The First Amendment was introduced during the tenure of Zulfikar Ali Bhutto to protect against internal and external destabilization.