What is the third most common gas found in the air we breathe ________ ...? Mcqs

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What is the third most common gas found in the air we breathe ________ ...?

(A) Hydrogen
(B) Neon

(C) Carbondioxide
(D) Argon

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Which one of the following is non-biodegradable material...?

(A) Plastic
(B) Manure

(C) Wood
(D) Cotton

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A localized group of organisms that belong to the same species is called a ____...?

(A) Biosphere
(B) Community

(C) Ecosystem
(D) Population

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Oil rises up to wick in a lamp because_____________...?

(A) Oil is very light
(B) Oil is volatile

(C) Diffusion of oil through the wick
(D) Capillary action phenomenon

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Light travelling in a straight line ______ when it strikes the surface of another medium....?

(A) Reflects
(B) Refracts

(C) Diffracts
(D) Absorbs

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What is the name of the branch of the science that studies the ocean...?

(A) Oceanography
(B) Algology

(C) Phology
(D) Orintology

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The olfactory nerves affect what sense in brain...?

(A) Smell
(B) Feel

(C) Touch
(D) Hear

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Which of the following is the major constituents of LPG...?

(A) methane
(B) ethane

(C) hydrogen
(D) butane

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The planet which is easily visible from the Earth is...?

(A) Mercury
(B) Venus

(C) Mars
(D) Jupiter

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The gas usually filled in the electric bulb is___________...?

(A) Nitrogen
(B) Hydrogen

(C) Carbon dioxide
(D) Oxygen

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