Explanation

In SO₂, sulphur and oxygen share electrons, forming covalent bonds.

Each oxygen atom forms a double bond with sulphur, giving a bent molecular shape.

Explanation

Let the number be x.

20% of x = 18

0.20x = 18

x = 18 / 0.20

x = 90

Explanation

The correct preposition is "to" — we say "a preface to a book." 

He has written a preface to this book.

Explanation

The TAPI Pipeline is a natural gas pipeline that originates in Turkmenistan, transporting gas through Afghanistan to Pakistan and India.

Turkmenistan–Afghanistan–Pakistan–India (TAPI) Pipeline, also known as Trans-Afghanistan Pipeline.

Work on the Afghan section began in February 23, 2018.

Explanation

Envious is generally followed by of.

Envious of means jealous of.

Envious means حاسد 

Explanation

Opprobrium means harsh criticism or public disgrace.

It is used to describe shame or dishonor brought upon someone.

Opprobrium means سخت تنقید یا عوامی بدنامی

Disgrace means سخت تنقید یا عوامی بدنامی

Explanation

Sun Yat-sen (founding father of China)

Sun Yat-sen born: 1866

Sun Yat-sen died: 1925

Sun Yat-sen: first provisional president of China

Sun Yat-sen title: Father of the Nation

Explanation

Diplomacy (1994) is a well-known book on international relations by Henry Kissinger.

It covers the history of diplomacy, power politics, and Kissinger’s own experiences.

Explanation

The Yarlung Tsangpo originates near Mount Everest in Tibet.

It is known as the Everest River before entering India, where it becomes the Brahmaputra.

Explanation

Power Supply Unit (PSU) converts electrical power from the outlet into usable power for the computer.

It provides voltage and current to all computer components.