Explanation

• ROM (Read Only Memory) is a non-volatile storage device.
• It stores data permanently even without power.

Additional information:

• RAM (Random Access Memory) is a volatile storage device.
• It loses data when power is off.

Last verified on 17-06-2026

Explanation

• Date: 16 August 1946
• Location: Calcutta (now Kolkata), Bengal, British India
• Organizer: All India Muslim League
• Announced By: Muhammad Ali Jinnah
• Outcome: Large-scale communal riots and violence between Hindus and Muslims

Last verified on 02-02-2026

Explanation

• Passed on 23 March 1940 at Minar-e-Pakistan (then Minto Park).
• Presented by A. K. Fazlul Huq.
• Presided over by Muhammad Ali Jinnah.
• Demanded independent states in North-West & East regions.
• Rejected the idea of a single all-India federation.

Last verified on 06-05-2026

Explanation

• The idiom "hit the nail right on the head" broadly means to do or say something that is completely accurate, precise, and perfectly suited for the situation.
• Because it encompasses verbal accuracy, correct actions, and directness.

Last verified on 19-01-2026

Explanation

For any angle θ:  

sin²θ + cos²θ = 1

Last verified on 09-05-2026

Explanation

Explanation

Given sinθ = 3/5, 1st quadrant

Use identity: sin²θ + cos²θ = 1

(3/5)² + cos²θ = 1  

9/25 + cos²θ = 1  

cos²θ = 1 - 9/25 = 16/25  

cosθ = ±4/5

In 1st quadrant both sin and cos are positive.  

So cosθ = 4/5.

Last verified on 04-05-2026

Explanation

• Mitochondria are called the powerhouse of the cell.
• Because they produce Adenosine Triphosphate (ATP).
• ATP is the energy currency of the cell.
• ATP provides energy for different cellular activities such as movement, growth, and transport.
• Energy is produced through aerobic cellular respiration using oxygen and الغذائی molecules.
• They are found in the cytoplasm of most eukaryotic cells.
• Richard Altmann first described mitochondria in 1890.

Main Parts of a Cell:

1. Cell membrane → Outer protective layer
2. Nucleus → Controls cell activities
3. Cytoplasm → Jelly-like material between membrane and nucleus

Last verified on 09-05-2026

Explanation

• Pakistan is located at a key crossroads of Asia.
• It connects South Asia, Central Asia, and the Middle East.
• This strategic location increases its political and economic importance.
• It also plays a key role in trade and regional connectivity.
• Major routes and projects pass through Pakistan.

Last verified on 25-05-2026

Explanation

• “At the eleventh hour” means at the very last moment.
• It refers to doing something just before it is too late.
• Example: He submitted the form at the eleventh hour.

Last verified on 14-05-2026