Which of the following organisms releases molecular oxygen into water...? Mcqs

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Which of the following organisms releases molecular oxygen into water...?

(A) E.coli
(B) Phytoplankton

(C) Amoeba
(D) Salmonella

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The M.K.S. system was first introduced by _________ ...?

(A) Giorgi
(B) Archimedes

(C) Eienstein
(D) Newton

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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Development of calf muscles in ladies who wear high heels is a common example of:...?

(A) Natural Selection
(B) inheritance of acquired character

(C) Use and disuse of organ
(D) Artificial selection

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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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The particles of a liquid...?

(A) Are tightly packed and stay in a fixed position
(B) Are free to move in a container but remain in close contact with one another

(C) Are widely spaced and move freely in any direction
(D) Are sparse and vibrate at long distances

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Stomach stores the ___________...?

(A) enzime
(B) Food

(C) hcl
(D) None of These

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Hepatitis is caused by: ____________...?

(A) Protozoans
(B) Algae

(C) Fungi
(D) Virus

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Locked-in syndrome (LiS) is which type of disorder...?

(A) Developmental
(B) Neurological

(C) Hormonic
(D) Genetic

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Which of the following equations represents a decomposition reaction...?

(A) A+B → AB
(B) A → AB

(C) AB → AC
(D) AB → A+B

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