Explanation

• In 1980, the Pakistan Agricultural Research Council (PARC) divided Pakistan into 10 agro-ecological zones.
• The classification was based on physiography, climate, soil, land use, and water availability.
• These zones help identify suitable crops and agricultural practices for different regions of Pakistan.

Last verified on 16-10-2026

Explanation

• Anti-dunes are bedforms that develop under supercritical flow conditions, where the Froude number is greater than 1.
• The Froude number is the ratio of flow inertia to the effect of gravity.

Additional information:

• Fr<1: Subcritical flow.
• Fr=1: Critical flow.
• Fr>1: Supercritical flow.

Last verified on 16-10-2026

Explanation

• Camshaft: Controls the opening and closing of the intake and exhaust valves at the correct time.

Additional information:

• Crankshaft: Converts the pistons’ reciprocating motion into rotational motion.
• Flywheel: Stores rotational energy and helps maintain smooth engine operation.

Last verified on 16-10-2026

Explanation

Explanation

جوش ملیح آبادی کو انقلابی خیالات اور جوشیلی شاعری کی وجہ سے "شاعرِ انقلاب" کہا جاتا ہے۔

ان کی شاعری میں آزادی، بغاوت، اور قومی غیرت کے جذبات نمایاں ہوتے ہیں۔

Last verified on 03-06-2026

Explanation

• Manchhar Lake is located in Jamshoro District, Sindh, Pakistan.
• It is approximately 23.5 km (14.6 miles) long.
• It is the largest natural freshwater lake in Pakistan.
• It is part of the Indus River basin.
• The lake receives water from the Kirthar Mountain Range and the Indus River system.

Last verified on 09-07-2026

Explanation

• Presented by: Sir Syed Ahmad Khan
• Famous Speech: Meerut Speech
• Date: 16 March 1888
• Purpose: To explain that Muslims and Hindus were separate nations with different religious, cultural, and social identities.
• Importance: Became the ideological foundation of Pakistan.

Last verified on 10-07-2026

Explanation

• The word Islam is derived from the Arabic root س ل م (S-L-M), associated with peace, safety, and submission.
• Islam means submission and obedience to Allah, while the related Arabic words convey meanings associated with peace and security.
• A key concept in Islam is submitting to the will of Allah and seeking peace through obedience to Him.

Last verified on 16-10-2026

Explanation

• The Battle of Badr is the first battle of Islam
• On 17 Ramadan, 2 AH (March 13, 624 CE)
• "Badr" means "full moon" in Arabic.
• Also called Furqan and The Day of the Criterion.
• Took place in the valley of Badr, located in the Hejazi region
• Muslims: Approx. 313 men (82 Muhajirun and 231 Ansar).
• Quraysh: Approx. 1000 soldiers led by Abu Jahl.
• 82-85 Muhajirun and 231 Ansar (61 from Aws and 170 from Khazraj).
• 2 horses and 70 camels.
• Fourteen Muslims were killed, while 70 Kufar were killed and 70 captured.

Last updated question by NA 22-April-2026

Explanation

• Nitrogen (N₂) → 78%

Additional information:

• Oxygen (O₂) → 21%
• Argon (Ar) → 0.93%
• Carbon dioxide (CO₂) → 0.04% (approximately)
• Other gases → Trace amounts

Last verified on 28-06-2026