Why normal rain is slightly acidic...? Mcqs

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Why normal rain is slightly acidic...?

(A) due to presence of dust in air
(B) carbon dioxide and water in clouds react to form carbonic acid

(C) Ozone depletion
(D) All of these

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In which state of matter, the particles arrangement is regular and closely packed...?

(A) Solid
(B) Liquid

(C) Gas
(D) None

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Calculus was invented by________...?

(A) Al-khawarzimi
(B) Pythagoras

(C) IsaaC Newton
(D) Al.kindi

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Which of following is the smallest endocrine gland in the human body...?

(A) Thyroid gland
(B) Pituitary gland

(C) Adrenal gland
(D) Pineal gland

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BCG vaccine is used to produce immunity against___________...?

(A) Whooping cough
(B) Tuberculosis

(C) Virus fever
(D) Smallpox

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If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...?

(A) Increase over 10%
(B) Decrease by 10%

(C) Decrease by 0.5%
(D) Increase by 0.5%

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The hard, solid rocks, whose composition or texture has been changed by heat or pressure in the Earth are called____________...?

(A) Sedimentary rocks
(B) Metamorphic rocks

(C) Igneous rocks
(D) All of the above

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Which process allow movement in and out of cell...?

(A) Osmosis
(B) Diffusion

(C) Active transport
(D) All of these

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The symbol denotes the proton number is ______...?

(A) P
(B) N

(C) Z
(D) A

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Sound travels in the form of waves called...?

(A) Longitudinal Waves
(B) Transverse waves

(C) Electromagnetic waves
(D) Radio waves

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