Explanation

• Anemometer is a scientific instrument used to measure wind speed (velocity).
• It is mainly used in meteorology and weather forecasting.
• It helps in studying storms, cyclones, and air pressure changes.
• Common types include cup, vane, and hot-wire anemometers.

Additional Information:

• A hygrometer is an instrument used to measure humidity.
• A salinometer is used to measure the salinity
• A bolometer is used to measure the power of incident electromagnetic radiation
• A barometer is used to measure air pressure in certain environment.

Last verified on 30-05-2026

Explanation

• The shortcut key to insert a new slide in a PowerPoint presentation is Ctrl + M.

Additional information:

• Ctrl + N shortcut key used to create a new presentation document.
• Ctrl + S shortcut key used to save a presentation.

Last verified on 29-05-2026

Explanation

• Purpose: Prevents text from being hidden in the binding
• Location: Can be added to left or top depending on binding type
• Adjustable in: Layout > Margins > Custom Margins > Gutter

Explanation

• The current Secretary-General of the United Nations is António Guterres from Portugal.
• He began his first term on January 1, 2017.
• He is currently serving his second term.

Last verified on 10-05-2026

Explanation

• SAARC was founded in Dhaka on December 8, 1985
• SAARC stands for the South Asian Association for Regional Cooperation
  
• Bangladeshi diplomat Abul Ahsan founded it
• It was launched for Regional cooperation
• Headquarters: Kathmandu

1. Australia,
2. China,
3. the European Union,
4. Iran,
5. Japan,
6. Mauritius,
7. Myanmar,
8. South Korea
9. and the United States

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There is a total of eight members of SAARC;

1. Afghanistan,
2. Bangladesh,
3. Bhutan,
4. India,
5. Nepal,
6. the Maldives,
7. Pakistan
8. and Sri Lank

Last question by NA on 26 April 2026

Explanation

The sum of all interior angles in any triangle is always 180 degrees.

A fundamental rule in Euclidean geometry, regardless of the triangle's shape (e.g., right, equilateral, scalene).

This property is known as the Angle Sum Property.

Last verified on 23-05-2026

Explanation

• Vitamin D is essential for healthy bones.
• Its deficiency leads to Rickets in children and Osteomalacia in adults.
• Sunlight is the best natural source of Vitamin D.

Additional information:

Deficiency effects:

• Bone pain
• Weak bones
• Skeletal deformities

Other Vitamin Deficiencies:

• Vitamin A: Night blindness
• Vitamin C: Scurvy
• Vitamin B7 (Biotin): Hair fall

Last verified on 17-01-2026

Explanation

 World War I (1914–1918)

Explanation

• Angel Jibril (Gabriel) is referred to as "Rooh ul Ameen".
• The Angel who used to bring down revelations to the Prophet.
• The Holy Quran mentions three times.
• He is the chief angel.
• “In this Night come down Rooh (Jibril) and angels under the command of their Lord for all the matters” (Sura Al Qadr). 

Last updated by NA on 25- April-2026

Explanation

Nisab of zakat for silver is 52 1/2 tola

Zakat means Purification.

When Zakat was made compulsory in 2 A.H. (properly implemented in 8 Hijri.

The word Zakat occurs 32 times in the Holy Quran.

Hazrat Abu Baker did Jihad on the issue of Zakat.

One who disbelievers in Zakat is a Kafir

“Zakat” is the treasure of Islam, who said this? Holy Prophet (PBUH)

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Last updated by NA on 25- April-2026