One of the main function of the earth’s ozone layer is to ...? Mcqs

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One of the main function of the earth’s ozone layer is to ...?

(A) Prevent global warming
(B) Filter out ultraviolet rays

(C) Absorb pollution
(D) All of the above

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Why the colour of the Ocean appears blue...?

(A) Because the sunlight falling on it is scattered.
(B) Because the sunlight falling on it is absorbed.

(C) Because the sunlight falling on it is refracted.
(D) Because the sunlight falling on it is reflected.

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Ring planet is Saturn; least dense and 2nd largest planet is_________...?

(A) Jupiter
(B) Saturn

(C) Neptune
(D) Mercury

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Objects that gives out light of their own are said to be...?

(A) Luminous
(B) Non-luminous

(C) Reflective
(D) Illuminated

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Water is a highly effective coolant for a car engine because _________...?

(A) Water is good conductor of heat
(B) Water has very high specific heat capacity

(C) Water boils at a comparatively high temperature
(D) Evaporation of water produces lot of cooling

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Which of the following is mismatched...?

(A) Anaphase → Chromatids move
(B) Prophase → Centriole move

(C) Telophase → Nuclear membrane disappear
(D) Metaphase → Chromosome line up

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Pomology is the study of: _________...?

(A) Mind
(B) Bones

(C) Fruits
(D) Birds

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Cell death which is caused by external factor called ____...?

(A) Apoptosis
(B) Autolysis

(C) Necrosis
(D) Mitosis

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kilohertz (kHz) is a unit which measures...?

(A) Power used by a current of one ampere
(B) Electromagnetic radio wave frequencies

(C) Voltage
(D) Electric resistance

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Any disease or infection that is naturally transmissible from vertebrate animals to humans is called...?

(A) Zonoses
(B) Zoonoses

(C) Ananoses
(D) Chordnoses

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