The audible range of normal bat ear is ______...? Mcqs

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The audible range of normal bat ear is ______...?

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

(C) 20 kHz to 110 kHz
(D) 20 Hz to 50 KHz

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The elements of VIIA group are known as ______...?

(A) Lanthanides
(B) Actinides

(C) Halogens
(D) Nobel Gases

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Marasmus disease is caused due to serve deficiency of...?

(A) Vitamins
(B) Proteins

(C) Carbohydrates
(D) None

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Chlorophyll is a green substance that is present in _____...?

(A) Mitochondria
(B) Nucleus

(C) Chloroplast
(D) Golgi Apparatus

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The main constituent of Pearls are: ______________...?

(A) Calcium oxide &Ammonium Chloride
(B) Calcium Carbonate &Megnesium Carbonate

(C) Aragonite & Conchiolin
(D) None of these

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_______ is called folic acid....?

(A) Vitamin B1
(B) Vitamin B6

(C) Vitamin B9
(D) Vitamin B12

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Sound of frequency below 20 Hz is:___________...?

(A) Audiosonic
(B) Infrasonic

(C) Ultrasonic
(D) Supersonic

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How is ammonia synthesized...?

(A) Herber process
(B) Regrigration process

(C) Contact process
(D) All of these

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There are ______types of respiration takes place in frog....?

(A) 1
(B) 2

(C) 3
(D) None of these

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Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy...?

(A) Earth
(B) Venus

(C) Moon
(D) Saturn

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