Which of the following is an example of a chemical reaction...? Mcqs

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Which of the following is an example of a chemical reaction...?

(A) Water freezing into ice
(B) Sand settling to the bottom of a pool

(C) Leaves changing colors in the fall
(D) A rock rolling down a hill

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Most important effect of the moon on earth is that it___________...?

(A) Causes weather change
(B) Causes earthquakes

(C) Causes solar and lunar eclipse
(D) Effects tides of the ocean

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The earth surface & crust constantly evolving due to ...?

(A) Rotary cycle
(B) Normal cycle

(C) Rock cycle
(D) Change cycle

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Yeast is an example of...?

(A) Bacteria
(B) Fungi

(C) Algae
(D) Virus

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The part of an eye acting as a aperture of camera is _____...?

(A) Iris
(B) Pupil

(C) Cornea
(D) Retina

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Select the odd one of the followings...?

(A) Active transport
(B) Diffusion

(C) Facilitated diffusion
(D) Osmosis

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Which of the following cannot be polarized...?

(A) Radio waves
(B) Ultraviolet rays

(C) X-rays
(D) Ultrasonic waves

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The complete graph of human genome was studied by ______...?

(A) PCR
(B) HGP (Human Genome project)

(C) Medicine
(D) Soma-clonal

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The largest artery in human body_______...?

(A) Subclavian artery
(B) Aorta

(C) Brachial artery
(D) None of these

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Element extracted from Sea water...?

(A) Beryllium
(B) Magnesium

(C) Aluminium
(D) None of These

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