In an atomic nucleus, neutrons and protons are held together by: ___________...? Mcqs

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In an atomic nucleus, neutrons and protons are held together by: ___________...?

(A) Gravitational forces
(B) Exchange forces

(C) Coulombic forces
(D) Magnetic forces

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Digestion of food is completed in the __________...?

(A) small intestine
(B) large intestine

(C) stomach
(D) Liver

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Which mineral is the present in meats, eggs, table salt, fruits and vegetables...?

(A) Sodium
(B) Iodine

(C) Calcium
(D) Magnesium

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With the increase in temperature, heat will be...?

(A) Increase
(B) Decrease

(C) Remain constant
(D) None

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Which of the following is a substance...?

(A) Sea water
(B) Brass

(C) Tape water
(D) Graphite

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Earth is divided into following three layers...?

(A) a. Crust, Mountains, Oceans
(B) b. Crust, Mantle, Trenches

(C) c. Trenches, Mountains, Core
(D) d. Crust, Mantel, Core

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The most abundant element in human body is __________...?

(A) Hydrogen
(B) Blood

(C) Oxygen
(D) Protein

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During the daytime, the air above the land gets heated up its density ____...?

(A) Increase
(B) Decrease

(C) Remain same
(D) Fluctuate

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Montreal Protocol 1987 was__________...?

(A) Treaty among nations to reduce nuclear arsenals
(B) Climate control treaty

(C) Treaty to protect ozone layer
(D) Trade policy about tarrifs

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Which gas is used to extinguish fire...?

(A) Nitrous Oxide
(B) Methane

(C) Carbon Dioxide
(D) Carbon Dioxide & Nitrous Oxide

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