For proper formation of teeth, __________ is essential...? Mcqs

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For proper formation of teeth, __________ is essential...?

(A) iodine
(B) copper

(C) fluorine
(D) iron

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A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same
(B) Decreases by 2

(C) Increases by 1
(D) Decreases by 4

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Liquid can be converted into gas by...?

(A) Cooling
(B) Heating

(C) Both A and B
(D) None

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Biggest award in the field of science is the __________...?

(A) Noble Prize
(B) UNESCO peace prize

(C) Right livelihood prize
(D) All of these

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In radiation, which of the following has strong photons...?

(A) X-Rays
(B) Gamma

(C) Microwave
(D) Electromagnetic

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Who invented Logarithm Tables...?

(A) John Napier
(B) John Doe

(C) John Harrison
(D) John Douglas

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Which gas is used by the green plants to make their food...?

(A) O2
(B) CO2

(C) CO
(D) N2

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Which body part gets older first...?

(A) Face
(B) Feet

(C) Hands
(D) None of these

Latest MCQs

A thermos flask keeps things close to their original temperature by reducing ____...?

(A) Conduction
(B) Convection

(C) Radiation
(D) All of these

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______ is a component that conducts current in one direction only....?

(A) Farad
(B) Insulator

(C) Transistor
(D) Diode

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