The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...? Mcqs

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The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...?

(A) Conduction of heat upward from a hot surface
(B) Convection from a hot surface

(C) Absorption of infrared energy that has been radiated from the surface
(D) Heat energy from the earth’s interior

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When oil and gas resources are burnt they kill many forests and lakes by ________________ ...?

(A) deforestation
(B) water pollution

(C) acid rain
(D) forest fire

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A magnet that is hard to magnetize is called a(n)...?

(A) Permanent magnet
(B) Temporary Magnet

(C) Electromagnet
(D) None

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The light of distant stars is affected by __________ ...?

(A) The earth’s atmosphere
(B) Interstellar dust

(C) both A and B
(D) None of these

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The molar mass of H2SO4 is ______...?

(A) 98 a.m.u
(B) 9.8 gm

(C) 98 gm
(D) 9.8 a.m.u

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Vertebrates animals that maintain a constant body temperature are called...?

(A) Cold-blooded
(B) Warm-blooded

(C) Both A and B
(D) None

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Sperms fuse with eggs to form ______...?

(A) Embryo
(B) Fetus

(C) Zygote
(D) Gamete

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An atom is_____________...?

(A) smallest indivisible particle in an element
(B) smallest particle of an element which can undergo a chemical reaction

(C) building block of an element
(D) always smaller than molecule

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The absorption of ink by blotting paper involves__________...?

(A) Viscosity of ink
(B) Capillary action phenomenon

(C) Diffusion of ink through the blotting
(D) Siphon action

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How many types of motion ...?

(A) 2
(B) 3

(C) 4
(D) 5

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