Ozone layer prevents ______________ radiation from entering the atmosphere...? Mcqs

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Ozone layer prevents ______________ radiation from entering the atmosphere...?

(A) Infra-red
(B) Ultraviolet

(C) X-rays
(D) Gamma rays

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Phosphorus is an essential component of one of the following biological molecules:...?

(A) Amino acids
(B) Nucleic acids

(C) Carbohydrates
(D) None

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Which of the following bonds are weakest in nature...?

(A) Single bond
(B) Double bond

(C) Triple bond
(D) Hydrogen bond

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On the Moon, the escape velocity is: __________...?

(A) Less than on Earth due to its lower mass and smaller radius
(B) More than on Earth due to its smaller radius

(C) The same as on Earth because escape velocity is a constant
(D) Dependent on the time of day

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Most of the living things use O2 to produce ______...?

(A) ATP
(B) Alcohol

(C) Organic acid
(D) Ecological pyramid

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What “Enrico Fermi” invented...?

(A) X ray machine
(B) Betatron

(C) Cyclotron
(D) Nuclear reactor

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All living organisms are classified into _______ kingdoms under the system proposed by Whittaker (1969)....?

(A) 5
(B) 6

(C) 7
(D) 8

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The most suitable unit for expressing nuclear radius is_______...?

(A) Angstrom
(B) Micro

(C) Nano meter
(D) Fermi

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When animals and plants are decayed in absence of air, there produces a gas called...?

(A) Natural Gas
(B) CNG

(C) LPG
(D) Biogas

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At room temperature most of ionic compounds are ______...?

(A) Amorphous solids
(B) Crystalline solids

(C) Liquids
(D) Gases

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