Which element has the third most % in human body...? Mcqs

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Which element has the third most % in human body...?

(A) Oxygen 65%
(B) Calcium 75%

(C) Hydrogen 10%
(D) Carbon 18%

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Bones Ash contain...?

(A) calcium sulphate
(B) phosphoric sulphate

(C) Calcium sulphate
(D) None of these

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Stimulus is detected by ______...?

(A) Receptor
(B) Effector

(C) Nerve
(D) All of these

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what is the height of The atmosphere layer mesosphere...?

(A) 85 km
(B) 50 km

(C) 40 km
(D) 10 km

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When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ...?

(A) These gases are not present
(B) These gases are like plasma

(C) These gases are frozen
(D) These gases are volatile

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Radio labeling and carbon dating also show some uses of radioactive isotopes in determining the ____ of fossils....?

(A) Size
(B) Age

(C) Shape
(D) Color

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The deficiency of vitamin K causes ________ ...?

(A) Loss of appetite
(B) Scurvy

(C) Sterility
(D) Blood clotting disorder

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Which one of the following statements is false about dynamic equilibrium...?

(A) It takes place in a close container
(B) Concentration of reactant and products are not changed

(C) Rate of forward reaction is equal to rate of reverse reaction
(D) Equilibrium cannot be disturbed by any external stress

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The production of rubber tree is better adopted to areas where the climate is_________...?

(A) Warm and humid
(B) Warm and dry

(C) Cool and moist
(D) cool and dry

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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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