Explanation

• Main Cause: Freon / CFCs
• Effect: Breaks down O₃ molecules → more UV-B radiation
• Other Contributors: Halons, carbon tetrachloride
• Result: Skin cancer, cataracts, climate impact

• The Montreal Protocol (1987) aimed to reduce CFC emissions
• Ozone layer protects Earth from harmful ultraviolet rays

Explanation

• Scarce means مختصر فراہمی یا نایاب میں
• Plentiful means وافر مقدار میں یا بڑی مقدار میں دستیاب ہے
• Abundant means وافر
• Abundance وافر

Last verified on 28-06-2026

Explanation

• Meticulous means محتاط
• Conscientious means باضمیر
• Precise means عین مطابق

• Painstaking means بہت محتاط اور درست

Last verified on 23-05-2026

Explanation

• UNO Founded: 24 October 1945 (after World War II 1939–1945)

Additional information:

• UNO Stands for: United Nations Organization
• Headquarters: Manhattan, New York City
• Member States: 193 countries
• Official Languages (6): Arabic, Chinese, English, French, Russian, Spanish
• Motto: “It’s your world!” (commonly used awareness slogan)
• Pakistan Joined UNO: 30 September 1947

Last verified on 10-06-2026

Explanation

• Perfunctory means something done with little care, effort, or interest.
• Cursory means quick and superficial, without careful examination.
• Perfunctory means کچھ بہت کم دیکھ بھال، کوشش، یا دلچسپی کے ساتھ کیا گیا ہے۔
• Cursory means فوری اور سطحی، بغیر محتاط جانچ کے
• Done superficially means کچھ بہت کم دیکھ بھال، کوشش، یا دلچسپی کے ساتھ کیا گیا ہے۔

Last verified on 02-09-2026

Explanation

• Prophet Musa (A.S) is mentioned about 136 times in the Holy Qur’an.
• Prophet Musa (A.S) was given the Torah (Tawrat) as a divine book.
• He is one of the Ulul-Azm prophets (the prophets of strong determination).

Additional information:

• Ibrahim (A.S) – about 69 times
• Nuh (A.S) – about 43 times
• Lut (A.S) – about 27 times
• Isa (A.S) – about 25 times

Last verified on 14-03-2026

Explanation

• RAM and Cache are volatile memories.
• It means their data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.
• RAM is used for running programs and storing temporary data.
• Cache is a high-speed memory that stores frequently used data for the CPU.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026

Explanation

• LAN stands for Local Area Network.
• It is a network that connects devices within a limited geographical area.
• LAN is commonly used in homes, schools, laboratories, university campuses, and office buildings.
• It provides high-speed communication and resource sharing between connected devices.

Additional information:

• MAN: Metropolitan Area Network – Covers a city or metropolitan area
• WAN: Wide Area Network – Covers a large geographical area (countries/continents)

Last verified on 07-07-2026

Explanation

• A collection of related data is called a Database.
• A database stores and organizes related information so it can be easily accessed, managed, and updated.
• Examples include student records, employee information, and customer details.
• A DBMS (Database Management System) is software used to create and manage databases.

Last verified on 08-08-2026

Explanation

• Rapid means تیز
• Quick means جلدی

Last verified on 06-09-2026