Explanation

• The shortcut key to insert a new slide in a PowerPoint presentation is Ctrl + M.

Additional information:

• Ctrl + N shortcut key used to create a new presentation document.
• Ctrl + S shortcut key used to save a presentation.

Last verified on 29-05-2026

Explanation

Explanation

• Pakistan joined the United Nations on September 30, 1947.

Additional information:

• The name was coined by US President Franklin D. Roosevelt.
• Headquarters is located in New York, United States.
• Founded on October 24, 1945.
• It currently has 193 member states and 2 observer states.
• The official languages of the UN are Arabic, Chinese, English, French, Russian, and Spanish.

1. 1952-1953
2. 1968-1969
3. 1976-1977
4. 1983-1984
5. 1993-1994
6. 2003-2004
7. 2012-2013
8. 2025-2026

Last verified on 09-03-2026

Explanation

• WBCs survive for about 13–20 days, depending on the type.
• WBCs are also called Leukocytes.
• They protect the body against infections.
• They are produced in the bone marrow.

Important Note: The 13–20 days lifespan is not applicable to all WBCs; their lifespan varies according to type.

Explanation

• Nitrous oxide, commonly known as laughing gas.
• It is a colorless, non-flammable gas used in medicine.
• Nitrous oxide (N₂O) causes temporary laughing and relaxation.

Additional information:

• Nitrous oxide was discovered by Joseph Priestley in 1772.

Last verified on 18-01-2026

Explanation

• Cache Memory is the fastest memory.
• It is typically located inside or very close to the CPU.

Additional information:

• L1 Cache: Usually the fastest and smallest CPU cache.
• L2 Cache: Larger than L1 but generally slower.
• L3 Cache: Larger and usually shared among CPU cores.

Last verified on 09-08-2026

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

• Charles Babbage is known as the Father of the Computer.
• He designed the more advanced Analytical Engine, which featured a "Mill" (CPU) and a "Store" (memory).

Additional information:

• He was an English polymath.
• Born: 26 December 1791 London, England
• Died: 18 October 1871 (aged 79) London, England

Last updated by NA on 06-11-2026

Explanation

• The Port of Seattle is located in the United States.
• Formed: September 5, 1911
• Jurisdiction: King County, Washington
• Headquarters: Washington, U.S
  

Last updated 07-09-2026 by NA

Explanation

• Headers and footers are visible in Page Layout View and Print Layout View.
• They appear at the top and bottom of a page.
• They can contain page numbers, dates, document titles, and other information.

Additional information:

• Page Layout View: Shows how the page will appear when printed, including headers and footers.
• Print Layout View: Displays the document with its page structure, including headers and footers.

Last verified on 02-10-2026