How long does the Earth take to complete one rotation...? Mcqs

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How long does the Earth take to complete one rotation...?

(A) 23 hours 59 minutes 59 seconds
(B) 24 hours 00 minutes 00 seconds

(C) 23 hours 56 minutes 04 seconds
(D) 24 hours 01 minutes 01 seconds

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An element that does not occur in nature but can be produced artificially is__________...?

(A) Plutonium
(B) Uranium

(C) Radium
(D) Thorium

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Deuterium differs from Hydrogen in having:...?

(A) Different atomic number but same atomic weight
(B) Different atomic number and different atomic weight

(C) Same atomic number and different atomic weight
(D) None

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Kidney disease happens due to overdose of...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin C
(D) Proteins

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What is the primary cause of cholera, diarrhea, and typhoid diseases...?

(A) Chemical Pollutants
(B) Microbial Pollutants

(C) Physical Pollutants
(D) Thermal Pollutants

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Which planet looks reddish in the night sky ...?

(A) Jupiter
(B) Saturn

(C) Mars
(D) MercurY

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In a solution, when water is used as a solvent that solution is called...?

(A) Saturated Solution
(B) Aqueous Solution

(C) Unsaturated Solution
(D) Concentrated Solution

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In which organism, the human insulin is inserted for the commercial preparation of insulin...?

(A) Algae
(B) Fungi

(C) Bacteria
(D) Virus

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Scientists who forecasting weather by continuously tracking and predicting the path of tornadoes, hurricanes or floods are called...?

(A) Geologists
(B) Meteorologists

(C) Astronomers
(D) Oceanographers

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A substance which increases the efficiency of a catalyst is termed as:...?

(A) Promoter
(B) Activator

(C) Retarder
(D) Super catalyst

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