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Who invented television ?

John Logie Baird
Issac Newton
Marconi
None of the above

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A light-year is defined as the...

Distance travelled by light in vacuum in one Julian year
Year which is dedicated to light
Distance between sun and moon
None of the above

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What is the hardest natural material known ?

Graphite
Steel
Diamond
Iron

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The hardness is defined as resistance to scratching and is graded between 1 (softest) and 10 (hardest) using the Mohs scale of mineral hardness. Diamond has a hardness of 10 (hardest) on this scale.

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Which planet is known as hottest planet in our solar system ?

Earth
Venus
Saturn
Jupitar

Venus.jpg

It is the second-closest planet to the Sun.It is Classified as a terrestrial planet and sometimes called Earth's 'sister planet'. Venus has the densest atmosphere of all the terrestrial planets. Mercury, Venus, Earth and Mars are known as terrestrial planets

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What is the name given to the green pigment in plants ?

Chlorophyll
Starch
Heme
Tendrils

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Chlorophyll is a green pigment found in most plants, algae, and cyanobacteria. Chlorophyll absorbs light most strongly in the blue and red but poorly in the green portions of the electromagnetic spectrum, hence the green colour of chlorophyll-containing tissues such as plant leaves.

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Which gas is known as natural gas having a molecular formula CH4.

Ethane
Methane
CNG
LPG

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It is a colorless, odorless gas and the simplest alkane.

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What is the chemical name of "Vinegar" ?

Sodium bicarbonate
Oxalic acid
Acetic acid
Hydrochloric acid

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Vinegar (sour wine) is a liquid made by some concentration of acetic acid.

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Which branch of science is related to the study of blood, the blood-forming organs, and blood diseases.

Hematology
Nephrology
Rheumatology
Pulmonology

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It is the branch of internal medicine. Hematology includes the study of etiology, diagnosis, treatment, prognosis, and prevention of blood diseases.

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Entomology is the scientific study of

Insects
Plants
Animals
Blood

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Entomology a branch of arthropodology.

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Where was the first commercially oil well drilled ?

Kuwait
USA
Saudi Arabia
USSR

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Oil well was drilled in Pennsylvania, USA in 1859 by Edwin L. Drake.

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