The SI standard of time is based on_____________...? Mcqs

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The SI standard of time is based on_____________...?

(A) the daily rotation of the earth
(B) the frequency of light emitted by Kr86

(C) the yearly revolution of the earth about the sun
(D) a precision pendulum clock

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Ratio is comparison of _____ values....?

(A) One
(B) Two

(C) Three
(D) Four

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Which is the purest form of water...?

(A) Rain water
(B) Heavy water

(C) Tap water
(D) None of these

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Which planet takes 4332 days to complete one revolution...?

(A) Earth
(B) Mars

(C) Jupiter
(D) Mercury

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Vertebrates animals that maintain a constant body temperature are called...?

(A) Cold-blooded
(B) Warm-blooded

(C) Both A and B
(D) None

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The chemicals released from one cell and carried to signal some distant cell through blood are ______...?

(A) Neurotransmitters
(B) Enzymes

(C) Hormones
(D) All of these

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Which among the following is manned spacecraft that took the humans to the moon...?

(A) Apollo-15
(B) Apollo-16

(C) Apollo-17
(D) Apollo-18

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Which of the following is a Non Metal that remains Liquid at room temperature...?

(A) Phosphorous
(B) Bromine

(C) Chlorine
(D) Helium

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A fresh egg when placed in salt water will __________ ...?

(A) sink and go to the bottom
(B) sink but will not go to the bottom

(C) Float
(D) Burst

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Blood glucose level is raised by the following except __________...?

(A) Carbohydrates
(B) Insulin

(C) Cholesterol
(D) Epinephrine

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