Only male frog produce croacking sound because _________ ...? Mcqs

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Only male frog produce croacking sound because _________ ...?

(A) Male frog can magnify their voice with the help of sound box.
(B) Male frog have three pair of vocal cord

(C) Female frog have larynx but no vocal cord
(D) Female frog have no larynx

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Vitamin C is essential for ______...?

(A) Appetite
(B) Muscles

(C) Growth and repair of tissues
(D) None of these

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Recognize the factor which does not affect the process of photosynthesis...?

(A) O2
(B) CO2

(C) H20
(D) Light

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Transistors do not need a warm up period because they have no ...?

(A) Plate
(B) Grid

(C) Filament
(D) None of above

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Object which allows some light to travel through it is called:...?

(A) translucent
(B) opaque

(C) transparent
(D) crystal clear

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who invented bulb...?

(A) Philips
(B) Robert

(C) Edison
(D) Willium

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Which one of the following is not a way to reduce friction...?

(A) Smooth and polishing surfaces
(B) Less contact area

(C) Oil and lubricants
(D) Ball bearing and rollers

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In the taxonomic hierarchy choose the term which encompasses all other in the list...?

(A) Genus
(B) Species

(C) Order
(D) Class

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The sunlight can reach a depth of___________meters in the ocean...?

(A) 80
(B) 200

(C) 120
(D) None

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Which two organs glands are affected by malaria...?

(A) Lungs and heart
(B) Spleen and liver

(C) Kidneys and lungs
(D) Heart and brain

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