Explanation

• PowerPoint allows an unlimited number of slides in a presentation.
• There is no fixed or hard-coded slide limit in MS PowerPoint.
• The number of slides depends on system memory (RAM) and file size.
• Very large presentations may slow down performance.

Last verified on 08-06-2026

Explanation

• URL stands for Uniform Resource Locator.
• It is a specific type of Uniform Resource Identifier (URI).
• Domain: World Wide Web
• First published: 1994
• Latest version: Living Standard, 2023

Used:

• Web page (HTTP/HTTPS)
• File transfer (FTP)
• Email (mailto)
• Database access (JDBC)

Last verified on 08-06-2026

Explanation

• Windows is not hardware; it is an operating system (software).
• Hardware refers to physical parts of a computer.
• Monitor, Keyboard, and Printer are physical devices.
• Software includes programs that run the computer system.
• Windows helps manage computer operations and hardware.

Last verified on 08-06-2026

Explanation

Suez Canal

• Location: Egypt
• Opened: 1869
• Length: 193 km
• Connection: Links Mediterranean Sea to Red Sea
• Purpose: Provides the shortest maritime route from Europe to Asia

Last verified on 08-02-2026

Explanation

• First Governor: Zahid Husain
• Term: June 1948 – July 1953

Additional information:

• First Female Governor: Dr. Shamshad Akhtar
• Year of Female Governor Appointment: 2006
• Headquarters: Karachi, Pakistan

Last verified on 16-01-2026

Explanation

• Alexander Fleming discovered Penicillin
• At St. Mary's Hospital in London
• In September 1928.
• First true antibiotic used to treat bacterial infections.
• First patient treated was Albert Alexander, a 43-year-old policeman, on 12 February 1941

Last updated by NA on 23-April-2026

Explanation

Surface area = 4πr², Volume = 4/3πr³.  

Surface area is just derivative of volume w.r.t r.

2πr is circumference of a circle, not volume at all.

Last verified on 07-06-2026

Explanation

• Microsoft Excel is a spreadsheet program used to organize, calculate, and analyze data efficiently.
• It is widely used in offices, schools, and businesses for data management.

Additional information:

• Allows calculations using formulas and functions.
• Can create charts, graphs, and pivot tables for data analysis.
• Supports data sorting, filtering, and visualization.

Last verified on 17-01-2026

Explanation

• World Environment Day is on 5 June.
• First observed in the city of Spokane in the USA in 1974.
• Established by the UN General Assembly in 1972.
• It is also called Eco Day.

Additional information:

Theme:

• 2020: Time for Nature in Colombia
• 2021: Ecosystem restoration in Pakistan
• 2022: Only One Earth in Sweden
• 2023: Solutions to Plastic Pollution in the Ivory Coast
• 2024: Land restoration, desertification, and drought resilience in Riyadh, Saudi Arabia
• 2025: Ending plastic pollution in South Korea

Last verified on 04-06-2026

Explanation

• Author: J. K. Rowling
• Full Name: Joanne Rowling
• Born: 1965
• Birth Place: United Kingdom
• Profession: Author, Screenwriter
• Harry Potter series has 7 main books.
• First book: Harry Potter and the Philosopher’s Stone (1997).

Last verified on 04-04-2026