Most of the ozone in the atmosphere is concentrated in the____________...? Mcqs

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Most of the ozone in the atmosphere is concentrated in the____________...?

(A) Mesosphere
(B) Troposphere

(C) Stratosphere
(D) Ionosphere

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All are characters of enzymes except...?

(A) Enzyme speed up a biochemical reaction
(B) Enzymes are sensitive to minor change in pH

(C) Enzyme activity enhanced by inhibitors
(D) Enzyme portion where substrate attach called active site

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What is the smallest unit of heredity...?

(A) Chromosomes
(B) Gene

(C) Nucleotides
(D) none

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Which metal is added to steel to make it stainless steel...?

(A) Chromium
(B) Aluminium

(C) Carbon
(D) Copper

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Which of the following is not a donor atom...?

(A) Phosphorus
(B) Antimony

(C) Arsenic
(D) Aluminum

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Which one among the following is not an example of pneumatic system...?

(A) Spray gun
(B) Bicycle pump

(C) Vacuum cleaner
(D) Car brake

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Winter Solstice means____________...?

(A) longest night
(B) longest day

(C) smallest night
(D) smallest day

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How Many Brains Does an Octopus Have...?

(A) 7
(B) 8

(C) 9
(D) 6

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Which is used to remove dissolved physical and chemical impurities from water is called ____...?

(A) Distillation
(B) Chlorination

(C) Filtration
(D) Sedimentation

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Year is longest on : _____________...?

(A) Mercury
(B) Venus

(C) Mars
(D) The Earth

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