The critical velocity vc = ______...? Mcqs

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The critical velocity vc = ______...?

(A) gR
(B) g/R

(C) √gR
(D) √g/R

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Special type of movement of specific substances through carrier protein is _____...?

(A) Facilitated diffusion
(B) Active transport

(C) Passive transport
(D) Osmosis

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Vitamin C deficiency leads to:____________...?

(A) Scurvy
(B) Cold

(C) Cancer
(D) Rickets

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Granite is a____________...?

(A) Metamorphic rock
(B) Igneous rock

(C) Sedimentry rock
(D) None of these

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The abrasives are ______...?

(A) Water
(B) Water insoluble minerals

(C) Water semi soluble minerals
(D) Water absorving minerals

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The study of fish is known as ________...?

(A) Entomology
(B) Ichthyology

(C) Ecology
(D) None of these

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The importance of perspiration is to ___________...?

(A) Eliminate body odours
(B) Improve the general health

(C) Open the pores in the skin
(D) Regulate body temperature

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Mass of Earth is _____...?

(A) 6.0 x 10^23 kg
(B) 6.0 x 10^24 kg

(C) 6.0 ´ 10^25 kg
(D) 6.0 ´ 10^26 kg

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What is the respiration equation in plants...?

(A) C6H12O6 + 6O2 → 6CO2 + 6H2O
(B) 6CO2 + 6H2O → C6H12O6 + 6O2

(C) 6CO2 + 6O2 → C6H12O6 + 6H2O
(D) 6H2O + 6O2 → C6H12O6 + 6CO2

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Transfer of internal energy by collision of particles and movements of electrons within the body is called...?

(A) Conduction
(B) Convection

(C) Radiation
(D) Insulation

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