The outermost layer of the Earth is called ____________...? Mcqs

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The outermost layer of the Earth is called ____________...?

(A) Crust
(B) Mental

(C) Core
(D) None of these

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What is the method that kills harmful microorganisms and prevents the spread of waterborne diseases such as cholera, dysentery, and typhoid...?

(A) Filtration
(B) Sedimentation

(C) Chlorination
(D) Distillation

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The mesosphere ranges from ________ to _________...?

(A) 46 km to 85 km
(B) 48 km to 85 km

(C) 50 km to 85 km
(D) 52 km to 85 km

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Velocity of sound in air does not change with the change of...?

(A) Temperature of air
(B) Pressure of air

(C) Moisture content in air
(D) Wind in the direction of propagation of sound

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White bloods cells are also known as________...?

(A) Thrombocytes
(B) Leucocytes

(C) Erythrocytes
(D) None of These

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Which gas is used in preparation of Soda water...?

(A) Ammonia
(B) Hydrogen

(C) Nitrogen
(D) Carbon Dioxide

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Barcode reader is a device ____...?

(A) Input
(B) Output

(C) Display
(D) Storage

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The meaning of Echoes is _______...?

(A) Repeating sounds
(B) Refracted sounds

(C) Absorbed sounds
(D) Amplified sounds

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In which type of seed the process hypogeal germination takes place...?

(A) Dicot Seed
(B) Monocot Seed

(C) Tricot
(D) None

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Which of the following gas diffuses fastest...?

(A) Hydrogen
(B) Chlorine

(C) Fluorine
(D) Helium

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