Which of the following gas mainly responsible for ozone layer depletion...? Mcqs

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Which of the following gas mainly responsible for ozone layer depletion...?

(A) Chlorofluorocarbon
(B) CO2

(C) Nitrogen oxide
(D) Sulphur dioxide

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Latest MCQs

Water at 4 degrees centigrade has...?

(A) Minimum density
(B) Maximum density

(C) No density
(D) None of these

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Latest MCQs

Which is the second largest component in milk...?

(A) Protein
(B) Fat

(C) Vitamin
(D) None of these

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A lake starts freezing because of the cold atmosphere. It will first freeze...?

(A) At the bottom
(B) ln the middle pan

(C) At the top surface
(D) Uniformly throughout the water body

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The point where the enzyme is most active is known as ______...?

(A) Neutral pH
(B) Acidic pH

(C) Basic pH
(D) Optimum pH

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Coal, gas and oil are all examples of _____...?

(A) Tidal energy
(B) Nuclear energy

(C) Fossil fuel energy
(D) Biomass energy

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What is the main function of red blood cells in the human body...?

(A) Transportation of carbon monoxide
(B) Transportation of oxygen

(C) Transportation of carbon dioxide
(D) Transportation of methane

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Addition reaction is also known as ____...?

(A) Combination Reaction
(B) Synthesis Reaction

(C) Decomposition Reaction
(D) Both A and B

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Selenology is the study of __________...?

(A) Stars
(B) Galaxy

(C) Moon
(D) Planets.

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Max plank is famous for his discovery of...?

(A) Energy quanta
(B) photon

(C) both of these
(D) None of these

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