Explanation

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

• Borith Lake is a lake in Gojal, Upper Hunza Valley in the Gilgit–Baltistan
• Lake type: Saline
• Basin countries: Pakistan
• Surface elevation: 2,600 m (8,500 ft)

Last updated by NS on 06 May 2026

Explanation

• In MS Word, Header and Footer options are found in the Insert tab.
• Go to the Insert tab on the top ribbon.
• Look for the Header & Footer group.
• Click on Header or Footer to pick a design or create your own

Last updated 07-09-2026 by NA

Explanation

• The capital of Japan is Tokyo. 
• Tokyo means "Eastern Capital".
• History: It became the imperial capital in 1868 after replacing Kyoto

• Japanese currency is the Yen.
• Japan's official language is Japanese.
• Japan is located in the Continent of Northeast Asia or East Asia.
• Japan's national sport is Judo. 
• The Japanese Parliament is called the Diet.

Last updated by NA on 09-09-2026

Last verified on 23-08-2026

Explanation

• Syed Murad Ali Shah is the 29th and current CM of Sindh.
• Assumed office: 27 February 2024
• It is his third term as Chief Minister.
• Governor: Syed Muhammad Nehal Hashmi
• Replaced by: Maqbool Baqar (Caretaker)

List of Chief Ministers of Sindh from 1947 till date:

Last verified on 15-07-2026

Explanation

General Elections are held after every 5 years.

The first-ever general elections were held on 7th December 1970.

Yahya Khan issued a Legal Framework Order for the first general elections.

Explanation

• Introduced by the Government of India Act 1919.
• Diarchy = system of shared rule in provinces under British India.
• Meaning: “Double system of government” – two heads responsible for administration.
• Introduced by Edwin Samuel Montagu and Lord Chelmsford.
• Ended by Government of India Act 1935, which established provincial autonomy.

Last verified on 23-01-2026

Explanation

• A computer cannot boot properly if it does not have an Operating System (OS).
• The operating system is the main software that loads after the boot process and enables the computer to run programs.
• Without an OS, the computer cannot provide a usable working environment.

Last verified on 22-07-2026

Explanation

• Venus is called the Morning Star and Evening Star.
• It is the second closest planet to the Sun.
• It is the brightest planet and the hottest planet in the Solar System.
• It has no natural moon (satellite).
• It is also known as the "Black Planet".

Last verified on 21-07-2026