____, days become longer and night become shorter....? Mcqs

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____, days become longer and night become shorter....?

(A) Autumn
(B) Summer

(C) Winter
(D) Spring

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Which term describes the emission of light by a living organism...?

(A) Natural light
(B) Bioluminescence

(C) Illumination
(D) Mimicry

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Work done per unit time is called ______...?

(A) Efficiency
(B) Energy

(C) Power
(D) Force

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The Moon is illuminated because it ________ the light from the Sun....?

(A) Absorbs
(B) Reflects

(C) Deflects
(D) Refracts

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Television signals are converted into light signals by___________...?

(A) Optical fiber
(B) Transistor

(C) Decoder
(D) Photo diode

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The depletion of ozone layer has been caused mainly by _____...?

(A) The release of industrial waste
(B) The deforestation of large area land

(C) The release of chlorofluorocarbons into the atmosphere
(D) None of these

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The PH of milk is _______...?

(A) 6.0
(B) 6.5

(C) 7.0
(D) 7.5

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Which are the largest of the white blood cells...?

(A) lymphocytes
(B) eosinophils

(C) basophils
(D) monocytes

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Which of the following is NOT a renewable energy source...?

(A) Solar energy
(B) Natural gas

(C) Hydro energy
(D) Wind energy

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Which one of the following act as oxidizing agent...?

(A) Be
(B) Mg

(C) Na
(D) Cl

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