Explanation

The Pakistani village of Ganda Singh Wala served as the main border crossing between India and Pakistan in the 1960s & 70s.

It was closed to trade & transit in 1986 and the main border crossing was shifted north to Wagah.

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RY 15-01-2023

Explanation

Explanation

A light year is the distance light travels in one year — about 9.46 trillion kilometers.

It is commonly used to measure vast distances between stars and galaxies.

Astronomers use an effect called parallax to measure distances to nearby stars.

Parallax is the apparent displacement of an object because of a change in the observer's point of view.

Explanation

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ND10-1-2023

Explanation

Explanation

• BCG (Bacille Calmette-Guerin) vaccine is primarily used to protect against Tuberculosis (TB).
• It is typically administered to infants and children in countries with high TB prevalence.

Explanation

• Copper mineral is found in Saindak (Baluchistan)
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• Saindak project is operated with the collaboration of China
• Project Location: Chaghi, Balochistan
  
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• The discovery of gold, copper & silver deposits at Saindak was made in the 1970s
• Trial production at the Saindak Copper-Gold project started in 1995.

Explanation

• Sound travels fastest in diamond, with a speed of approximately 12,000 meters per second (m/s).
• This is because diamond has a very high stiffness and density, which allows sound waves to propagate quickly through the material.

The speeds of sound in different materials:

• Air: 343 m/s
• Water: 1433 m/s
• Wood: 3300-3600 m/s
• Brick: 4176 m/s
• Steel: 6100 m/s
• Diamond: 12000 m/s

Explanation

Exhausted means تھکا ہوا

Smart means چست و چالاک

Explanation

At age 20, Quaid-e-Azam Muhammad Ali Jinnah began his law practice in 1896 in Bombay (now Mumbai).

After completing his legal studies in London.

He was the only Muslim barrister in the city at the time.