Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere...? Mcqs

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Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere...?

(A) Carbon dioxide
(B) Chlorofluorocarbons

(C) Nitrogen oxides
(D) Methane

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To which of the following chambers of the heart, is the aorta connected...?

(A) Left ventricle
(B) Right ventricle

(C) Right auricle
(D) Left auricle

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Study of life in outer space is known as ...?

(A) Endobiology
(B) Exobiology

(C) Enterobiology
(D) Neobiology

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Smallpox was eradicated in 1970s. What was the ‘great pox’ which remains active...?

(A) Bubonic plague
(B) Syphilis

(C) Measles
(D) None

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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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The interaction of living organisms with each other and with their environment is...?

(A) Community
(B) Population

(C) Ecosystem
(D) Habitat

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The earth rotates on its axis. It completes one rotation in...?

(A) 36 hours
(B) 24 hours

(C) 12 hours
(D) 48 hours

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Which vitamin is available to the human body through sun bathing...?

(A) Vitamin A
(B) Vitamin D

(C) Vitamin K
(D) Vitamin B12

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Gel electrophoresis is used in...?

(A) Amplifying DNA
(B) Sequencing DNA

(C) Separating DNA fragments on the basis of size
(D) Cloning DNA

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The Analytical Chemistry deals with instruments and methods to ______ identify and quantify the matter....?

(A) Mix
(B) Separate

(C) Differentiate
(D) Manipulate

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