Explanation

3% of Earth's water is fresh water.

2.5% of that fresh water is unavailable because it is:

• Locked in glaciers and polar ice caps
• Present in the atmosphere and soil
• Too deep underground to extract affordably

Only 0.5% of Earth's water is available as usable fresh water for human use.

Explanation

Aristotle is widely considered the founder of meteorology.

He first used the term "meteorology" in the fourth century BC, although his work on weather was based on observation and lore rather than modern scientific methods.

Explanation

Explanation

The mesosphere is the coldest layer of the atmosphere, with temperatures dropping as low as -90°C.

It lies above the stratosphere and below the thermosphere.

Explanation

A rectifier is an electrical device that converts Alternating Current (AC) into Direct Current (DC).

It works by allowing current to flow only in one direction using diodes.

Explanation

We are given:

(125)^(4/3)

Step 1: Rewrite 125 as a power of 5:
125 = 5³

So:
(125)^(4/3) = (5³)^(4/3)

Step 2: Apply exponent rule:
(5³)^(4/3) = 5^(3 × 4/3) = 5⁴ = 625

Explanation

In response to the Nehru Report (1928), which ignored Muslim concerns, Jinnah presented his Fourteen Points in 1929 to safeguard Muslim rights in India.

These points became the foundation of the Muslim League's demands and a key step toward the Two-Nation Theory.

Explanation

Explanation

The International Committee of the Red Cross (ICRC) reported in that over 100,000 people worldwide are missing due to conflicts, disasters, and migration.

This crisis affects families and communities globally.

Explanation

World Cancer Day is observed on 4 February.