Explanation

• Phosphorus is not among the top 10 most abundant elements in the Earth's crust.
• Most abundant element in Earth crust is Oxygen.
• Oxygen in the crust is (46. 1%).
• The chemical formula of oxygen (dioxygen) is O2.

List of 10 Most Abundant Elements in the Earth's Crust:

Last verified on 01-09-2026

Explanation

• The standard other name for junk email is Spam.
• Junk email is unwanted and unsolicited email sent in bulk.
• It is commonly used for ads, scams, or fake promotions.

Additional information:

• Spoof means pretending to be another sender (email spoofing).
• Spam filters are used in email services to automatically block junk mail.

Last verified on 16-02-2026

Explanation

• Mr. Spiedings suggests that they should go to the cellar.
• The cellar is mentioned as a place where they can go for safety.

Last verified on 23-08-2026

Explanation

• In Lord Dunsany’s short story “The Reward,” Gorgios was selected as the court acrobat.
• He spent over sixty years pursuing this ambition and eventually entered politics to create and fill the position himself.

Last verified on 20-09-2026

Explanation

• The pitch of a sound wave depends on its frequency.
• Pitch tells us whether a sound is high or low.
• Higher frequency → higher pitch (e.g., whistle).
• Lower frequency → lower pitch (e.g., bass drum).
• Frequency is measured in Hertz (Hz).

Last verified on 11-08-2026

Explanation

• Primary storage, also known as main storage or memory.
• It is the area in a computer in which data is stored for quick access by the computer's processor.
• The terms random access memory (RAM) and memory are often as synonyms for primary or main storage.

Last verified on 10-08-2026

Explanation

• One Gigabyte (GB) =  1024 Megabytes (MB)

Additional information:

The size of information in the computer is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

• 1 Kilobyte (KB) = 1024 bytes
• One Megabyte (MB) = 1024 Kilobytes (KB)
• One Gigabyte (GB) =  1024 Megabytes (MB)
• One Terabyte (TB)= 1024 Gigabytes (GB)

Last verified on 07-08-2026

Explanation

• If he works hard, he will pass the examination.
• This is a First Conditional sentence: If + present simple, will + base verb.
• "Will pass" expresses a likely future result if the condition is fulfilled.

Last verified on 28-07-2026

Explanation

• Full Form: Structured Query Language
• SQL is the standard language used to store, retrieve, update, and manage data in relational databases.

Additional information:

• Designed by: Donald D. Chamberlin & Raymond F. Boyce
• First appeared: 1974
• Latest ISO Standard: SQL:2016 (December 2016)
• Main SQL Commands: SELECT, INSERT, UPDATE, DELETE, CREATE

Last verified on 22-07-2026

Explanation

• Alt + Shift + F1 / Shift + F11 → Insert a new worksheet

Additional information:

• Shift + F10 → Open shortcut/context menu
• Ctrl + Page Up → Previous worksheet
• Ctrl + Page Down → Next worksheet

Last verified on 15-07-2026