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 three elements needed for healthy growth of plants are __________...?

(A) N, P, K
(B) N, C, P

(C) N, K,
(D) N, S, P

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How many moons does Neptune have...?

(A) 63
(B) 12

(C) 19
(D) 14

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The echo (reflected sounD. will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________...?

(A) 1120 ft
(B) 120 ft

(C) 56 ft
(D) 100 ft

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Material for rain-proof coats and tents owe their water proof properties to ________...?

(A) Surface tension
(B) Viscosity

(C) Specific gravity
(D) Elasticity

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The Tree sends down roots from its branches to the soil is known as:___________...?

(A) Oak
(B) Pine

(C) Banyan
(D) Palm

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Yeasts feeds on sugar in the dough and produces ______ gas....?

(A) Oxygen
(B) Hydrogen

(C) Carbon dioxide
(D) Nitrogen

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The outer part of DNA helix made up of sugar and phosphate is called ______...?

(A) Nucleoprotein
(B) Rungs

(C) Upright
(D) Phosphoester

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Atmospheric pressure acts in _____...?

(A) Only upwards
(B) Only downwards

(C) All directions
(D) Horizonal only

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What is an example of a synthesis reaction...?

(A) Water decomposing into Hydrogen and Oxygen
(B) Carbon combining with Oxygen to form Carbon Monoxide

(C) Nitrogen and Oxygen combining to form Nitrogen Dioxide
(D) Hydrogen and Oxygen combining to form water

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