The lowest zone of atmosphere containing about seventy five percent of total mass of atmosphere and ninety percent of its water vapour is called...? Mcqs

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The lowest zone of atmosphere containing about seventy five percent of total mass of atmosphere and ninety percent of its water vapour is called...?

(A) Troposphere
(B) Lonosphere

(C) Aerosphere
(D) Stratosphere

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To make an uncharged object to have a negative charge we must...?

(A) Remove some portion
(B) Add some atoms

(C) Add some electrons
(D) None of these

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Thomas Edison is famous for his invention of:...?

(A) Telephone
(B) Television

(C) Light Bulb
(D) None of these

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A________ is a device used to measure pressure in a fluid, typically a gas or liquid...?

(A) Manometer
(B) Galvanometer

(C) Ammeter
(D) Seismometer

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Far Sightedness can be corrected by:...?

(A) Convex lens
(B) Concave lens

(C) Bi Focal lens
(D) None of these

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Chronometer is used to measure...?

(A) Velocity
(B) Pressure

(C) Time
(D) None of these

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The "Law of Gravitation" was discovered by _____...?

(A) Isaac Newton
(B) Thomas Aiva Edison

(C) Hug Chavez
(D) Guhlielmo Marconi

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The time taken by light to reach the earth is...?

(A) 4 minutes 15 seconds
(B) 8 minutes 15 seconds

(C) 10 minutes 15 seconds
(D) 7 minutes 15 seconds

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The sun takes ........... years to travel around the galaxy..?

(A) One Hundred Years
(B) One millions years

(C) 225 million years
(D) 225 years

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Day and night changes due to...?

(A) Earth' revolution
(B) Earth's rotation accompanied with its revolution

(C) Earth's rotation around its axis
(D) None of these

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