Explanation

• Diamond is a naturally occurring allotropic form of carbon.
• Allotropy means a single element can exist in more than one form with different structures and properties.
• It is extremely hard.
• It has a high melting point.
• It is widely used in jewelry and cutting tools.

Additional information:

• Graphite – soft, good conductor
• Fullerenes (C60) – spherical molecules
• Carbon nanotubes – tubular, high strength
• Amorphous carbon – coal, soot
• Lonsdaleite – hexagonal diamond

Last verified on 17-01-2026

Explanation

• The bodyguard of the Earth is Jupiter, which protects Earth from many comets and asteroids due to its strong gravity.
• Jupiter attracts or deflects space objects that might otherwise hit Earth.
• It is the largest planet in the solar system.
• Its strong gravitational field acts like a “shield” for inner planets.
• That is why it is often called Earth’s protector.

Last verified on 14-06-2026

Explanation

When white light passes through a prism, it splits into 7 colors, forming a spectrum known as a rainbow:

1. Red
2. Orange
3. Yellow
4. Green
5. Blue
6. Indigo
7. Violet

The separation of visible light into its different colours is known as dispersion.

Last verified on 08-06-2026

Explanation

• Magnanimous means فراخدلانہ
• Generous means فیاض یا سخی

Last verified on 16-05-2026

Explanation

• The Treaty of Versailles was a peace treaty signed on 28 June 1919.
• Exactly five years after the assassination of Archduke Franz Ferdinand
• Ended  World War I Between Germany and the Allied Powers.
• Location: Hall of Mirrors in the Palace of Versailles, France
• Effective: 10 January 1920
• Languages: French and English

Last updated by NA on 27 April 2026

Explanation

Explanation

Oxidation is a chemical reaction involving the loss of electrons. 

Oxidation:

When a substance loses electrons during a chemical reaction, it is said to be oxidized. 

Reduction:

The opposite of oxidation is reduction, which is when a substance gains electrons.

Last verified on 08-02-2026

Explanation

• Venus comes closest to Earth when it is between Earth and the Sun.

• Minimum distance: about 24 million miles (≈ 38 million km).

• This close approach occurs roughly every 584 days.

Additional Information:

• Mercury can be about 33 million miles away when Venus is on the far side of the Sun.

Last verified on 17-01-2026

Explanation

Lithium is the lightest metal.

Density of 0.534 g/cm³.

It is an alkali metal,

The third element on the periodic table,

It is soft enough to be cut with a knife.

Uses: Due to its low density and high reactivity, it's used in aircraft and, famously, in the production of batteries for electric vehicles and consumer electronics. 

Explanation

CNG stands for Compressed Natural Gas

Methane is the main component of CNG 

the modern use of CNG as a fuel source began in the 1930s,

American physicist Dr. J.P. Farley discovered that natural gas could be compressed to a high-pressure 

natural gas became a transport fuel during the First World War