Explanation

• The lungs are the organs responsible for exchanging oxygen and carbon dioxide through the process of respiration.
• They consist of air-carrying tubes (bronchi and bronchioles) and tiny sacs (alveoli) where gas exchange occurs.

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.

Explanation

Convert to a common denominator: 3/8 + 4/2 = 3/8 + 16/8.

Add the fractions: (3 + 16) / 8 = 19/8.

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 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

A prime number has exactly two factors: 1 and itself.

The number 1 is not a prime number because it has only one factor (itself).

Explanation

Imperative sentences give commands, requests, or instructions.

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

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

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

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.