Explanation

The Pentagon is the headquarters building of the United States Department of Defense.

Located in Arlington County, Virginia

It was constructed on an accelerated schedule during World War II

As a symbol of the U.S. military, the phrase The Pentagon is often used as a metonym 

It is the world's second-largest office building

Construction started: 11 September 1941

Completed: 15 January 1943

Floor count 7 (2 underground)

Architect(s): George Bergstrom and David J. Witmer

Explanation

Gen. Zia was the second chief of staff of Pakistan Army from 1 March 1976 to 17 August 1988.

List of Army Chiefs of Pakistan

Explanation

• Amnesty International headquarters in the London
• Amnesty International founded in 1961.
• Amnesty International  by Englishman Peter Benenson.
• Amnesty International is a global movement of more than 7 million people in over 150 countries.
• Amnesty International's global website provides extensive information on human rights in specific countries.
• The Nobel Peace Prize 1977 was awarded to Amnesty International "for worldwide respect for human rights."

Explanation

Diego Garcia is an island of the British Indian Ocean Territory, an overseas territory of the United Kingdom.

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Explanation

The ratio of Ali's amount to Asim's amount is:

$$text{Ratio} = frac{20}{16} = frac{5}{4}$$

So, the correct ratio is 5:4.

Explanation

"The branch of biology that deals with organisms living in the ocean is called marine biology."
:
The term Marine Biology is used to refer to the study of marine organisms and ecosystems.

Explanation

Corrected narration:
"He said that if he worked hard, he would pass the exam."

In indirect speech, we change the present tense to the past tense. "Will" becomes "would," and "I" becomes "he."

Explanation

"One should do one’s duty."
 The sentence is correct as it is. "Duty" refers to a responsibility or task, and the sentence is an imperative general statement.

Explanation

Explanation