Explanation

List of Countries Landed on the Moon

Explanation

The mercury barometer is the oldest type of barometer.

It was invented by the Italian physicist Evangelista Torricelli in 1643.

Explanation

Rene Laennec, a French physician, invented the stethoscope in 1816.

He created the first stethoscope using a wooden tube that allowed him to listen to the heart and lungs of a patient without placing his ear on their chest.

Explanation

Edward Jenner (1749-1823) was an English physician and scientist who discovered the smallpox vaccine in 1796.

He observed that milkmaids who had contracted cowpox, a similar virus, were immune to smallpox.

Explanation

Radiation was discovered by Henri Becquerel in 1896.

When he observed that uranium salts emitted rays that could fog photographic plates.

It leading to the study of radioactivity.

Explanation

Alexander Graham Bell is often credited with being the inventor of the telephone since he was awarded the first successful patent. 

Telephone was invented in 1876.

Graham Bell made the first-ever telephone call to his partner, Thomas Watson.

agm 15.3.2023

Explanation

The demographic transition model was initially proposed in 1929 by demographer Warren Thompson.

Explanation

Isaac Newton belongs to UK

Explanation

• The Sui Gas Field, located near Sui in Balochistan Province, Pakistan.
• It was discovered by Pakistan Petroleum Limited in 1952.
• Production of Sui gas began in 1955.
• It remains the largest natural gas field in Pakistan.

Explanation

Origin of species using Natural Selection was the work of Charles Darwin.

It was published on 24 November 1859,

..

Charles Darwin's discoveries included.

four different species of giant ground sloth (some of the largest land mammals ever to have lived), a gomphothere,

and the remains of an extinct horse.

ND16-8-2023