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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Which of the following ocean is the most polluted ocean of the world...?

(A) Indian Ocean
(B) North Pacific Ocean

(C) Arctic Ocean
(D) None of the above

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The causes of the echo is _____...?

(A) Absorption
(B) Dispersion

(C) Reflection
(D) Refraction

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Sedimentary rocks are formed by natural process known as ...?

(A) Lithification
(B) Rejuvenation

(C) Hydration
(D) Peroxidation

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The point within the Earth where earthquakes originate is _________...?

(A) Comma
(B) Origin

(C) Epicenter
(D) Focus

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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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The primary colors of light are _____...?

(A) 2
(B) 3

(C) 4
(D) 5

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Trypsin is an enzyme which digests protein produced by_____________...?

(A) Liver
(B) Pancreas

(C) Stomach
(D) Small intestine

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How many bones in our body...?

(A) 102
(B) 306

(C) 206
(D) 204

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Calculus was invented by________...?

(A) Al-khawarzimi
(B) Pythagoras

(C) IsaaC Newton
(D) Al.kindi

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