A ‘breath test’ used by traffic police to check drunken driving uses ____...? Mcqs

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A ‘breath test’ used by traffic police to check drunken driving uses ____...?

(A) Turmeric on filter paper
(B) Silica gel coated with silver nitrate

(C) potassium permanganate-sulphuric acid
(D) Potassium dichromatic-sulphuric acid

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A telescope is an instrument that gathers _______ from distant sources....?

(A) Sound
(B) Light

(C) Heat
(D) Water

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The sun’s surface is called ___________...?

(A) Cromosphere
(B) Leutosphere

(C) Thermosphere
(D) Photosphere

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Lake, sea, wetland, river, ocean, pond is/are an examples of...?

(A) Water Environments
(B) Land Environments

(C) Both A and B
(D) None

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Final step of the scientific method is developing...?

(A) Hypothesis
(B) Research

(C) Conclusion
(D) Observation

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The name of the common mineral salt present in sweat is ...?

(A) Calcium Oxalate
(B) Potassium Sulphate

(C) Sodium Chloride
(D) Iron Sulphate

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The fourth state of matter is...?

(A) Water
(B) Salts

(C) Vapours
(D) Plasma

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The sun is _________times bigger than the Earth....?

(A) 105
(B) 107

(C) 109
(D) 111

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The rashes and athlete's foot are caused by which infection...?

(A) Bacterial
(B) Fungal

(C) Viral
(D) None of these

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The scientific study of teeth is called ____________...?

(A) Odontology
(B) Ornithology

(C) Orthoepy
(D) Pedagogy

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