___________ begins at 690 to 1,000 km from the surface, and extends to roughly 10,000 km....? Mcqs

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___________ begins at 690 to 1,000 km from the surface, and extends to roughly 10,000 km....?

(A) Troposphere
(B) Mesosphere

(C) Exosphere
(D) Stratosphere

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Which of the following factor does not affect the pressure of the gas in a container...?

(A) Temperature
(B) Volume

(C) Density of gas
(D) Container material

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Which one of the following is mismatched...?

(A) Proteases → Carbohydrate
(B) Lipases → Lipids

(C) Trypsin → Protein
(D) All are correctly matched

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Which metal known as quick silver ...?

(A) Mercury
(B) Sulphuric acid

(C) Chromite
(D) Quartz

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Chemical name of vinegar is _____________...?

(A) Sodium Nitrate
(B) Dilute acetic acid

(C) Chloride of lime
(D) Calcium

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The Stevenson screen contains all of these EXCEPT:...?

(A) Wet bulb thermometer
(B) Maximum thermometer

(C) Ordinary thermometer
(D) Anemometer

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Rainbow is formed due to ______...?

(A) Emission of light
(B) Absorption of light

(C) Refraction of light
(D) Transmission of sound

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The gas used in a refrigerator to cool water is___________...?

(A) Nitrogen
(B) Carbon dioxide

(C) Methane
(D) Tetrafluoroethane

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Acid deposition causes ______________________...?

(A) the greenhouse effect to lessen
(B) lakes and forests to die

(C) acid indigestion in humans
(D) all the above are correct

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Which substance has a pH value closest to neutral...?

(A) Ammonia
(B) Blood

(C) Milk
(D) Organic juice

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