The height of the troposphere varies between ____________....? Mcqs

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The height of the troposphere varies between ____________....?

(A) 7 km at equator and 17 km at poles
(B) 17 km at equator and 7 km at poles

(C) 18 km at equator and 8 km at poles
(D) 8 km at equator and 18 km at poles

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The cathode ray carry ______...?

(A) Positive charge
(B) Neutral

(C) Negative charge
(D) Positrons

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Force per unit area is called _____...?

(A) Volume
(B) Density

(C) Velocity
(D) Pressure

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Matter changes state from solid to liquid and from liquid to gases, when it...?

(A) Loses energy
(B) Gains energy

(C) Remains same energy
(D) Has constant temperature

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In the optic fiber, the core is made of glass or plastic of relatively ______...?

(A) Zero refractive index
(B) Low refractive index

(C) High refractive index
(D) No refractive index

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Recognize the factor which does not affect the process of photosynthesis...?

(A) O2
(B) CO2

(C) H20
(D) Light

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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 Beta particles are fast moving___________...?

(A) Protons
(B) Electrons

(C) Neutrons
(D) None

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If a body of mass 1 kg is moving with velocity of 1 m/sec. then K.E of the body will be...?

(A) 3 Joules
(B) 4 Joules

(C) 1/2 Joule
(D) 1 Joule

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What percentage of earth’s water supply is fresh water___________...?

(A) 3%
(B) 5%

(C) 21%
(D) None of these

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