The carbon dioxide content in the air that we exhale is about...? Mcqs

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The carbon dioxide content in the air that we exhale is about...?

(A) 4%
(B) 9%

(C) 15%
(D) 16%

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How many longitudes are there in Globe...?

(A) 90
(B) 180

(C) 270
(D) 360

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Which gas does a Photocopier machine produce...?

(A) Ozone
(B) carbon dioxide

(C) Sulfur dioxide
(D) None of these

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Which blood group is universal receiver...?

(A) Group A
(B) Group B

(C) Group AB
(D) GROUP O

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Which of the following is mainly used for light patrol engines ...?

(A) Kerosene oil
(B) Paraffin oil

(C) Heavy Fuel oil
(D) Gasoline

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Approximately how many Galaxies are there ...?

(A) 10 Billion Galaxies
(B) 100 Billion Galaxies

(C) 1000 Billion Galaxies
(D) 10000 Billion Galaxies

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Maintenance of soil fertility without addition of nutrition is due to...?

(A) Microbial Activity
(B) Crops residue

(C) Floods
(D) None of these

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The simplest kind of matter which cannot be further split up into simpler substances by chemical reactions is called...?

(A) Compound
(B) Atom

(C) Molecule
(D) Element

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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In which type of seed the process hypogeal germination takes place...?

(A) Dicot Seed
(B) Monocot Seed

(C) Tricot
(D) None

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