What is a hypothesis...? Mcqs

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What is a hypothesis...?

(A) The same thing as an unproven theory
(B) A tentative explanation that can be tested and is falsified

(C) A verifiable observation
(D) A fact based on quantitative data that is falsified

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_________ is the layer wherein most meteors are incinerated before reaching the surface....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Ionosphere

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Plants make their own food using...?

(A) CO2 & water
(B) Sunlight

(C) Chlorophyll
(D) Photosynthesis

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Dermatophagia is a ____ condition....?

(A) Physiological
(B) Psychological

(C) Dermatological
(D) Genital

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Leaves contains thin veins to transport _____...?

(A) Oxygen
(B) Carbon Dioxide

(C) Food
(D) Minerals

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Which of the following is a substance...?

(A) Sea water
(B) Brass

(C) Tape water
(D) Graphite

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The splitting of white light into its component colours is called ____...?

(A) Refraction of light
(B) Reflection of light

(C) Dispersion of light
(D) Diffraction of light

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Coke is made by heating coal in the absence of air at__________...?

(A) 700 °C
(B) 900 °C

(C) 1300 °C
(D) 1700 °C

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Which instrument is used to measure the power of electric circuit ...?

(A) Wavemeter
(B) Viscometer

(C) Wattmeter
(D) None of these

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A region on a longitudinal wave where the particles are furthest apart is called...?

(A) Rarefaction
(B) Compression

(C) Crest
(D) Trough

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