Explanation

The mean proportional of two numbers is the square root of their product.

Mean proportional = √(4 × 16) = √64 = 8

Explanation

Lucid means شفاف

Unclear means غیر واضح

Vague means مبہم

Explanation

Bleaching powder is synthesized by reacting chlorine gas with calcium hydroxide (Ca(OH)₂).

The chemical formula of bleaching powder is Ca(OCl)Cl.

Explanation

The boat moves from one side to the other side of the river, so "across" is used.

"Across the river" means crossing over the river.

Explanation

Curse means لعنت

Malediction means بدکاری

Explanation

We commonly use "at home" to indicate someone's location.

So, "He is at home" is the correct phrase.

Explanation

• A rubric is a scoring guide used to evaluate the quality of students' work, such as assignments, projects, and essays.
• It outlines specific criteria and standards for assessment, providing a clear and objective way to measure student performance.

Explanation

Extirpate means تباہ کرنا، نیست و بعبود کرنا، خاتمہ کرنا

To destroy completely means مکمل طور پر تباہ کرنے کے لئے

Explanation

RASH means جلدی

Delay means تاخیر