Explanation

• Speed: ~300,000 km/s (exactly 299,792 km/s)
• Symbol: c
• Medium: Vacuum (space)
• Type: Electromagnetic waves
• Constant: Universal physical constant

Last verified on 16-05-2026

Explanation

• India began halting water supplies to Pakistani canals on April 1, 1948, after a short-term standstill agreement expired.
• The halt started at the Ferozepur Headworks, affecting the Dipalpur Canal and other Pakistani canals.
• This event led to water disputes between India and Pakistan, culminating in the Indus Waters Treaty in 1960.

Last verified on 01-05-2026

Explanation

• The mass number (A) is the sum of protons and neutrons present in the nucleus of an atom.
• It is a measure of the total number of nucleons (protons and neutrons) in the nucleus.
• It helps determine the atomic mass and distinguishes isotopes of an element.

Last verified on 19-03-2026

Explanation

The Constitution Commission set up by Ayub Khan in 1960-1961

Ayub Khan established the Constitution Commission in 1960 to draft a new constitution.

It was headed by Justice Shahab-ud-Din, a former Chief Justice of Pakistan.

The commission was appointed on February 17, 1960, and presented its report to President Ayub Khan on May 6, 1961. 

Explanation

Small intestine is the primary site for nutrient absorption into the bloodstream.

It contains villi and microvilli, which increase the surface area for efficient absorption of digested food.

Explanation

Hazrat Usman bin Talha (R.A) always kept Ka'aba's key.

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He is considered and called as “Sadin of Mecca“,

He became a Muslim in the 8th year of the Migration, before the Conquest of Makkah.

He was a companion of the Islamic prophet Muhammad.

His father was Talhah ibn Abi Talhah al-Abdali 

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Saleh Bin Taha Al-Shaibi is the key holder of Kaaba 2022.

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Explanation

The correct phrase is "rely on," meaning to depend or trust.

"You may rely on our doing our utmost" is the grammatically correct form.

Relay on means انحصار کرنے یا اعتماد کرنے کے لئے

Explanation

Photosynthesis occurs most efficiently in this temperature range, as enzymes involved in the process function optimally.

Temperatures above 35°C can inhibit enzyme activity, reducing the rate of photosynthesis.

Explanation

The perimeter of a rectangle is the total distance around it.

Formula: Perimeter = 2 × (Length + Width).

Explanation