Explanation

• Surah Ar-Rahman is called Aroos-ul-Quran (Bride of the Quran).
• “Ar-Rahman” means The Most Merciful / Beneficent.
• Surah Number: 55
• Verses: 78
• Type: Makki Surah
• Theme: Blessings of Allah
• Repetition: Famous repeated verse 31 times

Additional information:

• Surah Yaseen is called the Heart of the Quran.

Last verified on 12-06-2026

Explanation

• Sound cannot travel through a vacuum because there are no particles to carry sound vibrations.
• Sound needs a medium such as a solid, liquid, or gas to travel.
• Since space is nearly a vacuum, sound cannot be heard there.
• The speed of sound in a vacuum is 0 m/s.

Additional information:

• Infrasound: Below 20 Hz
• Audible sound: 20 Hz – 20,000 Hz (20 kHz)
• Ultrasound: Above 20 kHz
• Speed of sound in air: 343 m/s
• Speed of sound in water: 1,481 m/s

Last verified on 07-06-2026

Explanation

• Hub Dam is located in Balochistan province.
• It is near the Sindh border and supplies water to Karachi.
• It is built on the Hub River about 56 km from Karachi.
• The dam lies between Lasbela District (Balochistan) and Karachi (Sindh).

Last verified on 20-06-2026

Explanation

• The retina is the light-sensitive layer located at the back of the human eye.
• It contains special cells called rods and cones that detect light and color.
• These cells convert light into electrical signals.
• The signals are then sent to the brain through the optic nerve to produce vision.

Last verified on 11-03-2026

Explanation

• The Indus Waters Treaty was signed on September 19, 1960, in Karachi.
• It was signed between Pakistan (President Ayub Khan) and India (Prime Minister Jawaharlal Nehru).
• It was brokered by the World Bank.

It became effective on April 1, 1960.

• Western Rivers (given to Pakistan): Indus, Jhelum, Chenab
• Eastern Rivers (given to India): Ravi, Beas, Sutlej

Last verified on 30-03-2026

Explanation

• Manchhar Lake is the largest natural freshwater lake in Jamshoro Sindh Pakistan.
• It collects water from the Kithar mountain range.
• It is one of South Asia's largest.
• It covers an area of 23.5 km (14.6 mi)
• It is the part of Indus River basin.

Last verified on 31-03-2026

Explanation

• Gwadar is a deep-sea port city in Pakistan (Balochistan).
• Its main role is international trade and maritime shipping.
• Fishing is also an important local economic activity.
• It is a key part of the CPEC (China–Pakistan Economic Corridor).
• It connects Pakistan with the Arabian Sea and global trade routes.

Last verified on 07-06-2026

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

• “Hit the sack” is a common English idiom.
• It means to go to bed or go to sleep.
• It is used in informal daily conversation.
• The phrase became popular in the early 20th century.

Last verified on 24-05-2026

Explanation

Important Passes of Pakistan

1. Khyber Pass

• Connects: Peshawar to Kabul
• Connects: Pakistan to Afghanistan
• Height 1070 meters, 3510 feet 

2. Bolan Pass 

• Connects: JCB and Sibi with Quetta 
• Height: 1793 meters, 5884 feet 

3. Lowari Pass

• Connects: Chitral with Dir 
• Height: 3118 meters, 10230 feet 

4. Broghil Pass

• Location: Pakistan & Afghanistan border 
• Height: 3798 meters, 12460 feet 

5. Malakand Pass

• Connects: Dir with Chitral 
• Height: 1362 meters, 4468 feet 

6. Shandur Pass

• Connects: Gupis/Gilgit with Chitral 
• Height: 3700 meters, 12139 feet 

7. Khanjerab Pass (top most in Pakistan)

• Other name: Friendship Gate
• Connects: China with Pakistan 
• Height: 4693 meters, 15397 feet 

8. Dorah Pass

• Connects: Badakhshan province of Afghanistan with Chitral 
• Height: 4300 meters, 14108 feet 

9. Babusar Pass

• Connects: Mansehra/Abbotabad with Gilgit

10. Kohat Pass

• Connects: Kohat with Peshawar 

11. Khojak Pass

• Connects: Qilla Abdullah with Chaman

12. Tochi Pass

• Connects: Ghazni with Bannu

Last verified on 01-04-2026