Explanation

Water boils at 100 °C (at 1 atm pressure), and during boiling, the temperature stays constant.

The heat energy is used to convert water into steam rather than raising its temperature.

Explanation

Chlorine is a yellow-green poisonous gas at room temperature.

Thorium and Plutonium are solids.

Mercury is a liquid at room temperature.

Explanation

Democracy means جمہوریت

Autocracy means خودمختاری

Dictatorship means آمریت

Explanation

Pardon means معافی

Punish means سزا دینا

Explanation

Ethics is the study or theory of morality, just as jurisprudence is the study or theory of law.

The relationship is field of study : subject matter.

Explanation

“Black sheep” is an idiom for a person who behaves badly or is disapproved of in a family or group.

It implies someone who stands out negatively compared to others.

Explanation

Slump means اچانک کمی کے لئے ، اکثر معاشی لحاظ سے جیسے اسٹاک یا مارکیٹ کی قیمتوں میں

Fall in the price of stock means اسٹاک کی قیمت میں گر

Explanation

Promptly means فوری طور پر

At once means ایک بار میں

Explanation

The correct past form of cast is cast, not casted.

The correct sentence is: “He cast his vote at the polling station of Gulberg.”

Explanation

The idiom “save for a rainy day” means keeping money or resources for difficult times.

It highlights the importance of preparation for hardships rather than spending everything in good times.