Explanation

The mercury barometer is the oldest type of barometer.

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

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

All plants move Anticlockwise around Sun

All plants move anticlockwise around their axis.

Earth rotates its axis from West to East

Explanation

Penicillin was discovered by Alexander Flaming In 1928

Penicillin was the first true antibiotic

The first patient Albert Alexander, a 43-year-old policeman, was treated with penicillin on 12 February 1941

Alexander Flaming determined that penicillin had an antibacterial effect and published his findings in 1929 

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ND4-672023

Explanation

Johan Gutenberg, a German inventor, is credited with inventing the movable-type printing press around 1440. It revolutionized the production of books and the spread of knowledge in Europe.

Explanation

Ophthalmology is a branch of medical science dealing with the structure, functions, and diseases of the eye.

Ophthalmology means امراض چشم

Explanation

COVID-19 is caused by a virus, specifically the SARS-CoV-2 virus.

The first infections with SARS-CoV-2 appeared in Wuhan in 2019.

Explanation

• A newborn infant has about 300 bones.
• It fuse to form the 206 bones typical in adults.
• The human skull has 22 bones.
• The hand contains 27 bones.

Explanation

Work and distance are scalar quantities because they have magnitude but no direction, but they are not vector quantities.

Vector Quantities: Velocity, momentum, torque, acceleration.

Scalar Quantities: Work, distance, speed, mass.

Explanation

Over the first 20 years after entering the atmosphere, methane has more than 80 times the warming power of carbon dioxide.

Despite the fact that CO2 has a longer-lasting effect, methane accelerates warming in the short term.