Explanation

• A Barometer is an instrument used to measure air (atmospheric) pressure.
• It helps in weather forecasting by measuring changes in atmospheric pressure.
• The mercury barometer is the oldest type of barometer.
• It was invented by Evangelista Torricelli in 1643.
• Barometers are widely used in meteorology and aviation.

Last verified on 09-07-2026

Explanation

• The Mangla Dam is situated on the Jhelum River.
• It is the seventh-largest dam in the world.
• Construction was started in 1961.
• It was completed in 1967.
• It has 5 tunnels and a power station.

Last verified on 07-06-2026

Explanation

• Origin: Left bank of Sukkur (Lloyd) Barrage
• River: Indus River
• Province Served: Sindh
• Sukkur Barrage Commissioned: 1932

Main Canals of Sukkur Barrage: 7 canals

1. Rohri Canal
2. Nara Canal
3. Khairpur East Canal
4. Khairpur West Canal
5. Dadu Canal
6. Rice Canal
7. North-West Canal

Last verified on 18-07-2026

Explanation

• A lactometer is used to measure the purity and density (thickness) of milk.
• It checks if milk has been adulterated with water by measuring specific gravity.
• Works on the principle of buoyancy.
• Pure milk specific gravity: 1.028–1.032 at 15°C

Last verified on 16-03-2026

Explanation

• The action started in the past and is continuing till now, so Present Perfect Continuous Tense is used.
• Correct sentence: She has been sleeping since morning.
• It has been raining since morning.

Last verified on 17-05-2026

Explanation

Vitamins B and C are water-soluble vitamins, meaning they dissolve easily in water.

• Vitamin B: Includes several B vitamins (B1, B2, B3, etc.), all of which are water-soluble.
• Vitamin C (Ascorbic acid): Also highly soluble in water.

Last verified on 02-04-2026

Explanation

Iran was the first country to recognize Pakistan on 22 August 1947.

List of Country recognized Pakistan Date vise:

Last verified on 31-03-2026

Explanation

Pakistan won the Cricket World Cup in 1992

Edition: Fifth

Format: One Day International (ODI)

Venue: Australia & New Zealand

Final held: 25 March 1992

Final Venue: Melbourne

Winner: Pakistan (First title)

Runners-up: England

Participating teams: 09

Total Matches: 39

Most wickets taken by: Wasim Akram (18 wickets)

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Question updated on 11-02-2026

Explanation

• Pressure is a fundamental physical quantity that is defined as the force exerted per unit area.
• It is a measure of the strength of a force acting on a surface.
• It is typically measured in units such as Pascals (Pa) or pounds per square inch (PSI).

Last verified on 10-02-2026

Explanation

Hepatitis B is the second major type of viral hepatitis after Hepatitis A.

It affects the liver.

It can lead to chronic infection and cirrhosis.