Which isotope is used to determine the accumulation rates of pollutants in layers of soil...? Mcqs

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Which isotope is used to determine the accumulation rates of pollutants in layers of soil...?

(A) Phosphorus - 32
(B) Carbon - 14

(C) Lead - 210
(D) Nitrogen - 15

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How many pounds in a kg...?

(A) 2.20
(B) 2.30

(C) 2.40
(D) 2.50

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Which organ is made up of air carrying tubes and tiny sacs...?

(A) Brain
(B) Lungs

(C) Liver
(D) Heart

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Nail polish remover contains___________...?

(A) Acetone
(B) Benzene

(C) Acetic acid
(D) Petroleum ether

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The two elements that are frequently used for making transistors are :...?

(A) Boron and aluminium
(B) Silicon and Germanium

(C) Iridium and Tungston
(D) None of these

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What is the magnetic field at any point in the open space inside the toroid...?

(A) zero
(B) one

(C) Depends on the current in the turns
(D) Depends on number of turns

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Swimmers make their bodies streamlined to ________ friction under water....?

(A) Increase
(B) Reduce

(C) Maintain
(D) Ignore

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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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How many Number of eyes found in Earthworm...?

(A) One
(B) Many

(C) No eye
(D) Two

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Which of the following have sharp melting point in solids...?

(A) Plastic
(B) Rubber

(C) Glass
(D) Diamond

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