Explanation

• Tarbela Dam is located in the Haripur district of Khyber Pakhtunkhwa.
• The largest earth-filled dam in the world
• It is 485 feet (148 m) high above the Indus riverbed.
  
• Its construction began in 1968
  
• It was completed in 1976
• Construction was undertaken by the Italian firm Salini Impregilo.

Last question by NA on 26 April 2026

Explanation

• Tarbela Dam was built on the Indus River in KPk.
• It is located mainly in the Swabi District Tehsil Topi of KPK.
• It is the largest earth-filled dam in the world
  
• The Construction began in 1968  
• They were Opened in 1976
• Height: 470 feet (143 m)

Last verified on 30-03-2026

Explanation

• Sound waves in solvents (like liquids) travel as longitudinal waves, where particles vibrate parallel to the direction of wave propagation.
• These are a type of mechanical wave, requiring a medium to travel.

Last verified on 19-03-2026

Explanation

The headquarters of OPEC is located in Vienna

OPEC stands for the Organization of Petroleum Exporting Countries.

It was founded on 14th September 1960 in Baghdad.

It consists of 13 members as of January 2020.

Its official language is English

Additional information:

OPEC had its headquarters in Geneva, Switzerland, in the first Five years of its existence 

This was moved to Vienna, Austria, on Sep 1, 1965

Explanation

The first census in Pakistan was held in 1951.

Additional information:

Total nationwide censuses in Pakistan: 7

• 1st Census: 1951
• 2nd Census: 1961
• 3rd Census: 1972
• 4th Census: 1981
• 5th Census: 1998
• 6th Census: 2017
• 7th Census: 2023

Frequency: Every 10 years (approx.)

Historical start: 1872 (British rule, first census in the region)

Last verified on 17-01-2026

Explanation

The capital of Ukraine is officially Kyiv

Currency is Hryvnia.

Official language is Ukrainian and Russian.

Located in the continent of Europe.

Primary religion is Eastern Orthodoxy.

The Verkhovna Rada of Ukraine is the unicameral parliament of Ukraine.

Explanation

Iran's Capital is Tehran.

Iran Currency is Rial.

Iran official language is Persian.

Iran located is in Continent Asia.

Iran Primary Religion is Islam.

Iran Head of Govt. is President – Ebrahim Raisi.

Iran Parliament called Majlis.

Explanation

The Arabian Sea lies in the South of Pakistan

It is located south of Pakistan with a coastline of 1,046 kilometers.

Indus River Falls into the Arabian Sea near Karachi

Indus River flows into the Arabian Sea called the Indus Delta 

Indus Delta Designated on 5 November 2002

Explanation

Al'Khwarizmi was an Islamic mathematician who wrote on Hindu-Arabic numerals.

The word algorithm derives from his name.

He wrote the first systematic book on Algebra, Al-Kitab al-Mukhtasar fi Hisab al-Jabr wal-Muqabala.

Explanation

• Triangle has 3 sides
• Square has 4 sides
• Pentagon has 5 sides
• Hexagon has 6 sides