Which of the following is called as Blue planet...? Mcqs

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Which of the following is called as Blue planet...?

(A) Mercury
(B) Earth

(C) Venus
(D) Neptune

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pH value of Blood or Red Blood Cells ...?

(A) 5
(B) 6

(C) 7.35-7.45
(D) 8-10

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Nebulae are made up of ________...?

(A) Oxygen (97%) and Nitrogen (3%)
(B) Hydrogen (97%) and Helium (3%)

(C) Carbon (50%) and Nitrogen (50%)
(D) Helium (97%) and Hydrogen (3%)

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The average kinetic energy of the molecules of a body determines...?

(A) heat
(B) temperature

(C) internal energy
(D) none

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Study of energy production in living bodies is called_________...?

(A) Biology
(B) Biomechanics

(C) Bioenergetics
(D) Aerodynamics

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The light rays used for eliminating bacteria...?

(A) X-rays
(B) infrared rays

(C) microwave radiation
(D) ultra-violet radiation

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__________ contains the ozone layer....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Ionosphere

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The human heart is _______ ...?

(A) Ampullary Heart
(B) Pulsating Heart

(C) Myogenic Heart
(D) Neurogenic Heart

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The moon’s surface is also covered with a layer of fine dust called...?

(A) Gegolith
(B) Megolith

(C) Regolith
(D) None of the above

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If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...?

(A) Increase over 10%
(B) Decrease by 10%

(C) Decrease by 0.5%
(D) Increase by 0.5%

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