Which of the following was first to be discovered in the chromospheres of the sun...? Mcqs

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Which of the following was first to be discovered in the chromospheres of the sun...?

(A) Krypton
(B) Xenon

(C) Neon
(D) Helium

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The type of electromagnetic wave used in security scanners at night is ______...?

(A) Microwaves
(B) Infra-red

(C) Radio waves
(D) X-ray

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The cow’s milk contains how much amount of water in terms of percentage...?

(A) 60%
(B) 65%

(C) 72%
(D) 80%

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Sleeping sickness in the natives of Africa is caused by________...?

(A) Trichomonas
(B) Giardia

(C) Leishmania
(D) Trypanosoma

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Cancer that does not form a tumor....?

(A) metastatic breast cancer
(B) leukemia

(C) lung cancer
(D) bladder cancer

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What is the molecular formula for Ammonia...?

(A) NH
(B) NH2

(C) NH3
(D) NH4

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Isotopes of an element are identical in ____...?

(A) Mass number
(B) Electron number

(C) Valency
(D) Atomic number

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What is the distance of the star Proxima Centauri from the planet Earth ________...?

(A) 4.2 light years
(B) 3.2 light years

(C) 2.4 light years
(D) 1.5 light years

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Spring balance is used to measure _________...?

(A) Mass
(B) Weight

(C) Elasticity
(D) Density

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Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ...?

(A) Microbiology
(B) Micrology

(C) Histopathology
(D) Tavelogy

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