The biological functions which perform gaseous exchange...? Mcqs

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The biological functions which perform gaseous exchange...?

(A) Photosynthesis
(B) Respiration

(C) Both a and b
(D) Growth

Latest MCQs

One Torr is equivalent to how many mm of Mercury...?

(A) 1 mm
(B) 10 mm

(C) 100 mm
(D) 0.1 mm

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Which of the following harmonics is two octaves higher in pitch than the fundamental...?

(A) Second
(B) Third

(C) Fourth
(D) Fifth

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A colour blind person cannot see ______...?

(A) Anything
(B) Red

(C) White
(D) Black

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What prevents the earth’s atmosphere from drifting away into space...?

(A) Gravity
(B) Ozone layer

(C) Troposphere
(D) Ecosystem

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What happens when oil is burnt...?

(A) Carbon dioxide and energy will be released
(B) Carbon monoxide and water will be released

(C) Oxygen and carbon will be released
(D) Nitrogen and hydrogen will be released

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Which gas can turn lime water milky...?

(A) O2
(B) NO2

(C) CO2
(D) N2

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Earth's magnetic field always has a horizontal component except at...?

(A) Equator
(B) Magnetic pole

(C) At 60*latitude
(D) None of these

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The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________...?

(A) The hair barging against the charged comb
(B) Small electric sparks

(C) The rubbing of the comb with the hair
(D) None of the above

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Short-sightedness can be corrected by using ___________...?

(A) Convex lens
(B) Concave lens

(C) Convex-concave lens
(D) Concave-convex lens

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