Explanation

ماضی بعید ایسے کام کو ظاہر کرتی ہے جو ماضی میں کسی دوسرے ماضی کے وقت سے پہلے مکمل ہو چکا ہو۔

وہ آیا تھا ماضی بعید کی مثال ہے۔

اس کی پہچان عموماً تھا، تھے، تھی سے ہوتی ہے۔

Last verified on 04-08-2026

Explanation

مطلع عربی لفظ "طلوع" سے نکلا ہے۔

اس کے لغوی معنی طلوع ہونے کی جگہ یا ابھرنے کی جگہ ہیں۔

قرآنِ کریم میں "مطلع الفجر" سے مراد فجر کے طلوع ہونے کا وقت یا جگہ ہے۔

Last verified on 04-08-2026

Explanation

قرآنِ مجید کے بعض سورتوں کے آغاز میں آنے والے جدا جدا حروف کو حروفِ مقطعات کہتے ہیں۔

ان کے حقیقی معنی اور حکمت اللہ تعالیٰ ہی بہتر جانتا ہے۔

یہ 29 سورتوں کے آغاز میں آئے ہیں۔

ان کی تعداد 14 مختلف عربی حروف پر مشتمل ہے۔

یہ قرآنِ کریم کے اعجاز اور حکمت کی نشانیوں میں شمار ہوتے ہیں۔

Last verified on 04-08-2026

Explanation

• Carbon monoxide (CO) binds strongly with hemoglobin in the blood.
• It forms carboxyhemoglobin (COHb), reducing the blood's oxygen-carrying capacity.
• CO binds to hemoglobin about 200–250 times more strongly than oxygen.
• This can lead to oxygen deficiency (hypoxia) in body tissues.
• Carbon monoxide is a colorless, odorless, and poisonous gas.

Last verified on 04-08-2026

Explanation

• Urine is produced in the kidneys by filtering the blood.
• The kidneys remove excess water, salts, and waste products from the blood.
• Urine is formed in tiny filtering units called nephrons.
• After formation, urine passes through the ureters to the urinary bladder.
• The kidneys help maintain the body's fluid and electrolyte balance.

Last verified on 04-08-2026

Explanation

• The Earth's outermost layer is called the Crust.
• The crust is the thin, solid outer layer where humans, animals, and plants live.
• It is located above the mantle, outer core, and inner core.
• It is made mainly of rocks and minerals.

Additional information:

• Earth's Layers (Outer to Inner): Crust → Mantle → Outer Core → Inner Core
• Crust Thickness: About 5–70 km
• Mantle Thickness: About 2,900 km
• Outer Core Thickness: About 2,260 km
• Inner Core Radius: About 1,220 km

Last verified on 04-08-2026

Explanation

• William Harvey discovered the circulation of blood.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

• Tritium (³H) is the radioactive isotope of hydrogen.
• It undergoes beta (β) decay and changes into Helium-3.

Additional information:

• Hydrogen Isotopes: 3 (Protium, Deuterium, Tritium)
• Protium (¹H): 1 proton, 0 neutrons (Stable)
• Deuterium (²H): 1 proton, 1 neutron (Stable)
• Tritium (³H): 1 proton, 2 neutrons (Radioactive)
• Half-life of Tritium: Approximately 12.3 years

Last verified on 04-08-2026

Explanation

• Data transfer between computers is carried out through communication protocols.
• A protocol is a set of rules that allows computers to communicate and exchange data.
• Common network protocols ensure reliable and secure communication.
• Protocols are essential for the Internet and computer networks.

Last verified on 04-08-2026

Explanation

• An Operating System manages and controls all computer hardware and software resources.
• It acts as an interface between the user and the computer hardware.
• The OS manages memory, files, devices, and running programs.
• Without an Operating System, a computer cannot function properly for users.
• Common operating systems include Windows, Linux, and macOS.

Last verified on 04-08-2026