Explanation

• SOP stands for Standard Operating Procedure.
• It is a written document that provides step-by-step instructions for performing routine tasks consistently and correctly.
• SOPs improve efficiency, quality, safety, and accountability in organizations.
• They help employees follow the same standard process.

Last verified on 08-07-2026

Explanation

• Meaning: The committee has finished its report.
• Committee is treated as a singular collective noun, so it takes has.
• Has completed is the correct present perfect tense.

Last verified on 07-07-2026

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

• Finland is called the "Land of a Thousand Lakes".
• Because it has over 188,000 lakes.
• It covering about 10% of its land area.
• It is a Nordic country located in Northern Europe.

Additional information:

• Land of the Rising Sun: Japan
• Land of the Midnight Sun: Norway
• Land of Fire and Ice: Iceland
• Land of White Elephant: Thailand

Last verified on 03-07-2026

Explanation

• The F1 key is used to: Help menu

Additional information:

• F4: Creates a new document 
• F2: Renames the file
• F5: Reload key
• F7: Spell check

Last verified on 06-07-2026

Explanation

• The shortcut key for Undo (last action reverse) is Ctrl + Z in most computer systems.
• It is used to cancel the last mistake or action.

Additional information:

• Ctrl + P = Print
• Ctrl + Y = Redo
• Ctrl + S = Save
• Ctrl + C = Copy command
• Ctrl + V = Paste
• Ctrl + C = Copy
• Ctrl + X = Cut
• Ctrl + Y = Redo

Last verified on 10-06-2026

Explanation

• The Andes Mountain Range is the longest continental mountain range in the world.
• It stretches along the western edge of South America.
• Its total length is about 8,900 km (5,500 miles).
• Highest peak of Andes: Aconcagua (6,961 m)

Additional information:

• Sutter Buttes is considered the smallest mountain range in the world.
• Location: California, USA
• It is also called the “World’s Smallest Mountain Range”.
• Highest mountain in world: Mount Everest (8,848.86 m)
• Second highest peak: K2 (8,611 m)
• Himalayas length: about 2,400 km

Last verified on 17-05-2026

Explanation

Bangladesh Currency is Taka.

Bangladesh Capital is Dhaka.

Bangladesh official language is Bangla.

Bangladesh located is in Continent Asia.

Bangladesh Primary Religion is Islam.

Bangladesh Parliament called Jatia Parliament.

Tricks for Remember

Last verified on 01-07-2026

Explanation

Selling price = Cost + 10% profit

220 = Cost + 0.10 × Cost

220 = 1.10 × Cost

Cost = 220 / 1.10

= 200

Last verified on 30-03-2026

Explanation

• The Sahara Desert is the largest hot desert in the world.
• Location: Africa
• Length: Approximately 4,800 km (3,000 miles)
• Area: About 9.2 million km²

List of top deserts in the world:

Last verified on 10-05-2026