All of the following statements are incorrect except:...? Mcqs

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All of the following statements are incorrect except:...?

(A) Precision and accuracy should go side by side in a scientific work
(B) Scientific work must be precise, accuracy is not essential

(C) Scientific work must be accurate, precision is not essential
(D) Calculations must be made before any experiment

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PSR J0108-1431 is the closest known ______________ to Earth...?

(A) Black hole
(B) Red giant

(C) Quasar
(D) Pulsar

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Quantity of fresh air required for a man is 1000 cubic feet of air for every____________...?

(A) 5 minutes
(B) 10 minutes

(C) 15 minutes
(D) 20 minutes

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The only non metal exists in liquid state is ___________...?

(A) Mercury
(B) Bromine

(C) Phosphorus
(D) Iodine

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Diamond is a very expensive ornament. It is composed of a single element ___________...?

(A) Carbon
(B) Gold

(C) Silver
(D) Platinum

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which of the following planets has no moons ...?

(A) Mars
(B) Neptune

(C) Venus
(D) None of these

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Humming bird belongs to a category called ...?

(A) Ectotherm
(B) Endotherm

(C) Exotherm
(D) Heterotherm.

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The Oort cloud is estimated to be about __________ AU away from the sun...?

(A) 100,000
(B) 200,000

(C) 300,000
(D) 400,000

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In which layer of atmosphere does commercial aircrafts usually fly...?

(A) Stratosphere
(B) Troposphere

(C) Mesosphere
(D) Thermosphere

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Which one is longitudinal wave...?

(A) sound waves
(B) light waves

(C) water waves
(D) electromagnetic waves

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