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.

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.

Explanation

The lifespan of a red blood cell is around 120 days.

Blood cells are made in the bone marrow.

Explanation

Plasma is the fourth state of matter, following:

1. Solids
2. Liquids
3. Gases

It consists of ionized gases with equal numbers of positively and negatively charged particles.

Explanation

Sunlight travels at the speed of light.

Sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.

Light from Sun travels a distance of  150 Million km before it reaches Earth

Moonlight an average of 1.3 seconds to travel from the moon to the Earth.

ND16-3-2023

Explanation

1. Mercury

Swift Planet for Mercury

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2. Venus

Eight planets in the solar system

Explanation

علم الحشرات، وہ علم جو حشرات کی ساخت سے تعلق رکھتی ہے

Entomology Insects: کیڑے مکوڑے یا حشرات 

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Entomology is the study of insects and their relationship to humans, the environment, and other organisms.

RK12-12-22

Explanation

The SI unit of pressure is Pascal (represented as Pa) 

in SI base units, one kilogram per meter per second squared (N/m2 or kg m-1s-2)

Definition of Pressure: Pressure can be defined as the force acting per unit area.

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The SI unit of energy/work is the joule (J)

ND23-9-2023

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

All plants move Anticlockwise around Sun.

All plants move anticlockwise around their axis.

Earth rotates its axis from West to East.