A bird sitting on a high tension electric wire does not get electrocuted because:...? Mcqs

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A bird sitting on a high tension electric wire does not get electrocuted because:...?

(A) Sit has high resistance
(B) the body is earthed

(C) it does not form a closed path for the flow of current
(D) its feet are good insulators

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The gravitational pull at the lunar surface is ________ of Earth...?

(A) 1/3
(B) 1/4

(C) 1/5
(D) 1/6

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Which of the following are not deflected by electric and magnetic fields ...?

(A) Alpha rays
(B) Beta rays

(C) Gamma rays
(D) None of these

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Which of the following are the layers of the body wall in sponges...?

(A) Pinacoderm and mesoderm
(B) Pinacoderm and choanoderm

(C) Epidermis and choanoderm
(D) Pinacoderm and ectoderm

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Which of the following is the second kind of lever...?

(A) A nail cutter
(B) A fishing rod

(C) Pliers
(D) Claw hammer

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During the daytime for the photosynthesis, plants require ______...?

(A) O2
(B) N2

(C) CO2
(D) H2

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A fresh egg when placed in salt water will __________ ...?

(A) sink and go to the bottom
(B) sink but will not go to the bottom

(C) Float
(D) Burst

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A process in which two light nuclei combine to form a heavier nucleus is called...?

(A) Nuclear fusion
(B) Nuclear fission

(C) Beta-decay
(D) Alpha-decay

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Which is the renewable source of energy...?

(A) Solar and wind
(B) Coal

(C) Natural gas
(D) Petroleum

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Analytical solutions to Quadratic equations were introduced by__________...?

(A) Al-Khawarzimi
(B) Al-haitham

(C) IsasacNewton
(D) Pythagoras

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