Explanation

• “Was run over” is the correct passive voice construction.
• “Run over” means to hit someone or something with a vehicle.
• The structure is was + past participle → was run over.

Last verified on 05-10-2026

Explanation

• “All” is used independently and refers to everything/everyone.
• Therefore, in “All is well,” it functions as an indefinite pronoun.

Last verified on 05-10-2026

Explanation

• Coded entries used to gain access to a computer system are called passwords.
• Definition: A secret string of letters, numbers, or symbols.
• Purpose: User verification and account security.

Last verified on 07-08-2026

Explanation

• Wilhelm Conrad Rontgen discovered X-rays
• He was discovered on 8 November 1895.
• He got the Nobel Prize in Physics in 1901.

Additional questions

• The penetrating power of X-rays depends on their frequency

Last updated 26-07-2026 by NA

Explanation

• A strong password should contain a combination of letters, numbers and special characters.
• Alphabetic characters: A–Z, a–z
• Numeric characters: 0–9
• Special characters: @, #, $, %, !
• Strong password: Long, unique, and difficult to guess.

Last verified on 05-10-2026

Explanation

• Main country: Botswana
• Region: Southern Africa
• Other countries: Namibia and South Africa
• Approximate area: 900,000 km²
• Type: Semi-arid sandy savanna

Last verified on 05-10-2026

Explanation

• Silviculture is the science and practice of establishing, growing, managing, and harvesting forest trees.
• It deals with the growth and development of forests.
• It aims to maintain healthy and productive forest resources.

Additional information:

• Forestry: Science and management of forests and forest resources.
• Agriculture: Cultivation of crops and rearing of animals.
• Arboriculture: Cultivation and management of individual trees and shrubs.

Last verified on 05-10-2026

Explanation

• In SONAR, the wavelength of the sound wave does not change simply because the submarine is farther away.
• Wavelength depends on the frequency of the sound and its speed in the medium, not on the distance traveled.

Additional information:

• SONAR: Sound Navigation and Ranging
• It uses sound waves to detect and locate underwater objects.

Last verified on 05-10-2026

Explanation

• The correct preposition after “approve” is “of” when expressing agreement or acceptance.
• The correct phrase is “approve of hunting.”
• “Approve of” means to consider something acceptable or satisfactory.

Last verified on 05-10-2026

Explanation