The audible range of normal dolphin ear is ____...? Mcqs

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The audible range of normal dolphin ear is ____...?

(A) 20 Hz to 120 kHz
(B) 20 Hz to 20 kHz

(C) 20 Hz to 100 kHz
(D) 20 Hz to 50 KHz

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All electromagnetic waves travel through a vacuum at ______...?

(A) The different speed
(B) The same speed

(C) The increasing speed
(D) The decreasing speed

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Which planet is losing its atmosphere at faster than the earth...?

(A) Mecury
(B) Venus

(C) Mars
(D) Jupiter

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In a process of cellular respiration 180 ATP molecules are produced, how many moles of glucose consume during this process...?

(A) 2
(B) 5

(C) 8
(D) 10

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The primary function of the feathers in birds is to _________...?

(A) Provide insulation for preserving body heat
(B) Provide striking surface to the wings for flying

(C) Make the body surface waterproof
(D) impart coloration for species as well as sex recognition

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Zero error of the instrument is _______...?

(A) Systematic error
(B) Human error

(C) Random error
(D) Classified error

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The winter solstice in the southern Hemisphere occurs on __________...?

(A) 22 December
(B) 23 September

(C) 21 June
(D) 22 March

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The fundamental frequency of a guitar is string 220 Hz, the frequency of the second harmonic is...?

(A) 220 Hz
(B) 440 Hz

(C) 320 Hz
(D) 620 Hz

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The group containing only electromagnetic waves is ______...?

(A) Light waves, Radio waves, Microwaves
(B) Light waves, Radio waves, Sound waves

(C) Light waves, Sound waves, Microwaves
(D) Radio waves, Sound waves, Microwaves

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The photo-receptors in the eye are present in___________...?

(A) Cornea
(B) Retina

(C) Iris
(D) Sclera

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