Explanation

Explanation

"Should keep" in active voice changes to "should be kept" in passive voice.

The object "one's promise" becomes the subject in passive form.

Explanation

Let's denote the cost price as CP.

Given selling price (SP) = Rs 2400

Loss percentage = 20%

CP = SP / (1 - Loss percentage)

= 2400 / (1 - 0.20)

= 2400 / 0.80

= Rs 3000

Explanation

Bhutan absorbs more CO₂ than it emits, making it the world's only carbon-negative country.

It maintains vast forest cover.

It uses hydropower for clean energy.

Explanation

A district is a defined area within a country, organized for administrative or governmental purposes.

It may include towns, villages, or cities.

It is overseen by local authorities like a Deputy Commissioner.