Explanation

Mali and Haiti are classified as underdeveloped countries due to their low economic growth, poor infrastructure, and high poverty rates.

They struggle with political instability, weak healthcare systems, and limited industrialization.

Explanation

The sentence follows the active voice structure, where the subject (All my certificates) performs the action (are attached).

In passive voice, it would be restructured as: All my certificates have been attached herewith.

Explanation

"Neither of them" is singular, so it takes a singular verb ("was").

In subject-verb agreement, "neither" always takes a singular verb, even though it refers to two people.

Explanation

Aristotle viewed education as a means to develop a person’s intellectual and moral virtues.

He believed that education helps individuals achieve their full potential as members of society through intellect and free will.

Explanation

Juna Khan, later known as Muhammad bin Tughluq.

He was the son of Ghiyasuddin Tughluq, the founder of the Tughluq Dynasty in the Delhi Sultanate.

He became the Sultan of Delhi in 1325 after his father’s death.

Explanation

Liquid-cooled garments were first developed for astronauts to regulate body temperature in space.

Now, they are also used by nuclear reactor workers and car racers to prevent overheating in extreme environments.

Explanation

Constructivism is a learning theory that suggests learners construct knowledge through experiences and interactions.

It emphasizes active learning, where students build their understanding rather than just receiving information passively.

Explanation

Alexander the Great reached Babylon and died there in 323 BC at the age of 33.

He was a famous Macedonian ruler who expanded his empire across Greece, Egypt, Persia, and India.

Explanation

"The captain" renames or gives more information about "Sarfraz Ahmed," making it an appositive.

A noun in apposition provides extra details about another noun without changing the sentence structure.

Explanation

A derived quantity is obtained from fundamental quantities (like mass, length, and time).

Force = Mass × Acceleration (Newton’s Second Law), so it is derived from mass, length, and time.