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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Latest MCQs

Bio elements considered as vital for life are ______ members or in numbers....?

(A) 13
(B) 12

(C) 14
(D) 16

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Latest MCQs

Milk contains water...?

(A) 70%
(B) 75%

(C) 87%
(D) 90%

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Latest MCQs

Which one from among the following is not an example of wedge...?

(A) Axe
(B) Ramp

(C) Knife
(D) Push pin

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Bromine is a___________________...?

(A) black solid
(B) red-brown liquid

(C) colourless gas
(D) highly inflammable gas

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Organisms that eat all the dead and waste products of producers and consumers are called...?

(A) Producers
(B) Consumers

(C) Decomposers
(D) None

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The Temperature of the surface of Sun is_______...?

(A) 5,778 Kelvin
(B) 6,778 Kelvin

(C) 7,778 Kelvin
(D) 9,778 Kelvin

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An instrument to detect the purity of milk is____________...?

(A) Lactometer
(B) Hygrometer

(C) Manometer
(D) Sonometer

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How many hearts an Octopus has...?

(A) 10
(B) 8

(C) 5
(D) 3

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Which of the following is a Lewis base...?

(A) HNO3
(B) CN

(C) HCl
(D) AlCl3

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