Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________....? Mcqs

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Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________....?

(A) Mass of vertical column of atmospheric gases
(B) Mass of horizontal column of atmospheric gases

(C) Weight of vertical column of atmospheric gases
(D) Mass of vertical and weight of horizontal of atmospheric gases

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Our atmosphere consists of___________ Oxygen approximately...?

(A) 11% Oxygen approximately
(B) 21% Oxygen approximately

(C) 31% Oxygen approximately
(D) None of these

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Scientists who forecasting weather by continuously tracking and predicting the path of tornadoes, hurricanes or floods are called...?

(A) Geologists
(B) Meteorologists

(C) Astronomers
(D) Oceanographers

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Sound waves are _________ waves....?

(A) Transverse
(B) Electromagnetic

(C) Longitudinal
(D) None of these

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The audible range of normal dog ear is ______...?

(A) 16 Hz to 20kHz
(B) 10 Hz to 31kHz

(C) 67 Hz to 45kHz
(D) 20 Hz to 20kHz

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Which one of the following is oxidizing agent...?

(A) Al
(B) H2S

(C) Cl2
(D) NaH

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The sun is made up of 99.9% of ________________ and ______________...?

(A) Oxygen and Hydrogen
(B) Hydrogen and Sulfur

(C) Carbon and Silicon
(D) Hydrogen and Helium

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The unit to measure the quantity of Ozone in atmosphere is ...?

(A) Dobson
(B) Cloning

(C) Dalton
(D) Colomb

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Farad is the unit of___________...?

(A) inductance
(B) voltage

(C) capacitance
(D) None of these

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the delicate lungs are protected by a cage that is called ______...?

(A) luvcage
(B) Ribcage

(C) both A & B
(D) None of these

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