Explanation

A mirage occurs when light bends due to varying air temperatures, causing total internal reflection.

This makes distant objects appear as if they are reflected in water, commonly seen in deserts.

Explanation

The International Olympic Committee (IOC) awards the Olympic Games to a specific city.

The host city is responsible for organizing and managing the event with national support.

Explanation

1 kilowatt hour (kWh) = 1000 watts × 3600 seconds

1 kWh = 1,000 × 3,600 = 3,600,000 joules (J)

Explanation

Imperative sentences give commands, requests, or instructions.

"Move the chairs into that corner quickly." is a command, making it an imperative sentence.

Explanation

Given:

x ∝ 1/y

y ∝ 1/z

We can rewrite these proportions as:

x = k₁/y (where k₁ is a constant)

y = k₂/z (where k₂ is a constant)

Substitute the expression for y into the first equation:

x = k₁/(k₂/z)

Simplify:

x = k₁z/k₂

x ∝ z

Explanation

Freestyle swimming (front crawl) is the fastest swimming technique due to its continuous arm movement and efficient kicking.

It is commonly used in competitive swimming for speed and efficiency.

Explanation

In isometric contraction, muscle length remains the same while tension increases.

No visible movement occurs, as seen in activities like holding a plank or pushing against a wall.

Explanation

The Baluchistan Plateau covers most of Balochistan province, extending into Iran and Afghanistan.

It is a dry, rugged, and mountainous region with significant mineral resources.

Explanation

A good teacher should understand the student's situation before taking any action.

This approach helps in building trust and addressing any genuine issues causing the delay.

Explanation

A Circle Kabaddi match lasts 40 minutes, divided into two halves of 20 minutes each.

There is a 5-minute break between the halves for rest and strategy discussion.