Explanation

Alfred Nobel was a chemist from Sweden. 

Dynamite was invented by Alfred Nobel in the 1860s.

He is also the founder of the Nobel Prize

He also invented Nitro-glycerine in 1875.

Alfred Nobel  Born: October 21, 1833, Stockholm, Sweden

Alfred Nobel  Died: on December 10, 1896, in Sanremo, Italy

Alfred Nobel Full name: Alfred Bernhard Nobel

Additional Information

The first Noble Prize was awarded on 10th December 1901

The first Noble Prize was awarded in Stockholm, Sweden.

Explanation

The Wright Brothers, Orville and Wilbur, invented and flew the first successful airplane.

This historic flight took place on December 17, 1903, in Kitty Hawk, North Carolina.

Explanation

Plaster of Paris changes into gypsum on mixing with water 

It is commonly called P.O.P. is calcium sulfate hemihydrate.

The chemical formula of plaster of Paris  is CaSO4.1/2 H2O

Crystals of gypsum are produced when Plaster of Paris is mixed with water 

Gypsum is calcium sulfate dihydrate and a mineral used in cement manufacturing.

It helps in controlling the rate of hardening of the cement. 

Explanation

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

Explanation

Arachnophobia is the fear of spiders.

آراکنو فوبیا مکڑیوں کا خوف ہے۔

It is one of the most common specific phobias.

Where individuals experience intense fear or anxiety when encountering spiders.

Explanation

Claustrophobia is the fear of confined or small spaces.

کلاسٹروفوبیا محدود یا چھوٹی جگہوں کا خوف ہے۔

It can cause anxiety in situations where escape feels limited.

Explanation

• Hydrophobia, or fear of water, is a well-known symptom of rabies.
• A viral disease that affects the central nervous system.

Explanation

• 'Ornithologist' is a person "who specializes in the study of birds".
• 'Biologist' is a person who studies biology.
• 'Naturalist' is a person who studies and knows a lot about plants and animals.
• 'Zoologist' is a person who scientifically studies animals.

Explanation

Astronomy is the study of everything in the universe beyond Earth's atmosphere

Galileo Galilei is often referred to as the "father of modern astronomy" and the "father of modern physics".