Color of the glow produced in the discharge tube:...? Mcqs

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Color of the glow produced in the discharge tube:...?

(A) depends on the pressure in the discharge tube
(B) depends on the metal used as cathode

(C) depends on the gas used in the discharge tube
(D) does not depend on the nature of the gas used in the discharge tube

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Which blood cells are called ‘Soldiers’ of the body ...?

(A) WBC
(B) Platelets

(C) RBC
(D) All of the above

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When we sleeps blood pressure_____________...?

(A) Increases
(B) Decreases

(C) Remain constant
(D) None of these

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Bees must collect nectar from approximately how many flowers to make 1 pound of Honeycomb....?

(A) 20 million
(B) 1 million

(C) 5 million
(D) None of these

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Very small time intervals are accurately measured by the___________...?

(A) Pabsars
(B) White dwarfs

(C) Atomic Clocks
(D) None of these

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A set of metabolism reaction which maintain internal environment is ______...?

(A) Positive feedback
(B) Negative feedback

(C) Osmoregulation
(D) Homeostasis

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The change from liquid to solid, or the reverse of melting, is called...?

(A) Melting
(B) Freezing

(C) Evaporation
(D) Condensation

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When white light is passed through a prism, it splits into __________ colours....?

(A) 5
(B) 6

(C) 7
(D) 8

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Bubo bubo is the scientific name of which of the following species...?

(A) Hen
(B) Peacock

(C) Eagle
(D) Owl

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Serum if blood plasma minus its...?

(A) Calcium ions
(B) Clotting proteins

(C) Globulins
(D) none

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