The earth revolves around the sun at a speed of__________...? Mcqs

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The earth revolves around the sun at a speed of__________...?

(A) 18.5 km/sec
(B) 26.6 km/sec

(C) 29 km/sec
(D) 31.9 km/sec

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Radiations are harmful as it:___________...?

(A) Causes skin cancer
(B) Causes anemia

(C) Alters body tissue
(D) is unstable

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______ structures have different functions (physiology) but having similar internal architecture....?

(A) Analogous
(B) Homologous

(C) Vestigial
(D) Rudimentary

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The person who inhales cigarette smoke indirectly is known as...?

(A) Active smoker
(B) Passive smoker

(C) Chain smoker
(D) Social smoker

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The turn ratios of a transformer is 10. It means ______...?

(A) Is = 10 Ip
(B) Np - 10Ns

(C) Ns = 10 Np
(D) Vs = 10 Vp

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The power of combining of an atom with other atoms to form molecules or compounds is called...?

(A) Atomic Mass
(B) Valency

(C) Electronegativity
(D) Ionization Energy

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How many coloumns in the modern Periodic Table...?

(A) 17
(B) 18

(C) 19
(D) None of these.

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What is the chemical formula for Sodium carbonate _______ ...?

(A) Na3CO2
(B) CNa2O3

(C) Na2CO3
(D) Na3CO3

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According to World Health Organization (WHO), the industrial limit of sound in the industries must be...?

(A) 80 dB
(B) 75 dB

(C) 85 dB
(D) 100 dB

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A thermometer is made up of a glass tube which is filled with...?

(A) Water
(B) Air

(C) Mercury
(D) Alcohol

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