The speed of sound in air is ______...? Mcqs

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The speed of sound in air is ______...?

(A) 332 m/s
(B) 345 m/s

(C) 333 m/s
(D) 354 m/s

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The process of splitting water molecules in the presence of light energy is called_________...?

(A) Electrolysis
(B) Photolysis

(C) Radiolysis
(D) Thermolysis

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how many bones in each foot ...?

(A) 26
(B) 27

(C) 28
(D) 30

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The insects (arthropods) that are now extinct...?

(A) Trilobites
(B) Arachnids

(C) Crustaceans
(D) Myriapods

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What is the wavelength of visible spectrum:...?

(A) 1300-3000A
(B) 3900-7600A

(C) 7800-8000A
(D) None of these

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Which One of the Following Is Not a Greenhouse Gas...?

(A) Methane
(B) Hydrogen

(C) Nitrous oxide
(D) Ozone

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What natural phenomena are measured by the Richter Scale...?

(A) Volcanoes
(B) Typhoons

(C) Earth quacks
(D) Tsunami

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Respiratory surface possesses following property...?

(A) Thin and wet
(B) Permeable

(C) Very large
(D) All of these

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Which provide instant energy...?

(A) Mineral
(B) Vitamin

(C) Carbohydrates
(D) Protein

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Pedosphere is sum of_____________...?

(A) Organisms
(B) Soil and water

(C) Air
(D) All of above

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