The light rays used for eliminating bacteria...? Mcqs

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The light rays used for eliminating bacteria...?

(A) X-rays
(B) infrared rays

(C) microwave radiation
(D) ultra-violet radiation

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Latest MCQs

The pH scale is a measure of the acidity or alkalinity of a solution, and it ranges between ____...?

(A) 1 - 10
(B) 1 - 14

(C) 5 - 15
(D) 0 - 12

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Latest MCQs

Permanent hardness of water may be removed by the addition of___________...?

(A) Sodium Carbonate
(B) Alum

(C) Potassium Permanganate
(D) Lime

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Latest MCQs

The electronic that have been knocked out of the outer most shell of an atom are known as...?

(A) Free Electrons
(B) Valence Electrons

(C) Core Electrons
(D) Conductors

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which of these plants open its mouth when insect sit on its lid...?

(A) Sunflower
(B) Pitcher plant

(C) Brassica Plant
(D) None of these

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The only vitamin which can not be stored in human body...?

(A) Vitamin C
(B) vitamin D

(C) vitamin K
(D) None of these

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Latest MCQs

The artificial manipulation, medication and recombination of DNA ____...?

(A) Genetic engineering
(B) Biotechnology

(C) Molecular Biology
(D) Genetics

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Latest MCQs

The most important function of perspiration is...?

(A) Get rid of body waste
(B) Regulate body temperature

(C) Regulate body waste
(D) Lubricate the skin

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Layer of atmosphere which separates stratosphere and troposphere is known as...?

(A) Tropo-pause
(B) Mesopause

(C) Stratopause
(D) Thermopause

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Latest MCQs

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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