Why is the Ozone important for mankind...? Mcqs

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Why is the Ozone important for mankind...?

(i) Protection from ultraviolet rays of sun
(ii) It releases oxygen in the air

(iii) It maintains temperature of the earth
(iv) It releases hydrogen in the atmosphere

Latest MCQs

Water drops are spherical because of...?

(i) Air pressure
(ii) Density

(iii) Viscosity
(iv) Surface tension

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The energy generation in starts is due to ...?

(i) Fission of heavy nuclei
(ii) Fusion of light nuclei

(iii) Fusion of heavy nuclei
(iv) None of these

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What is the energy formed due to waterfall:...?

(i) Potential Energy
(ii) Kinetic Energy

(iii) Motion Energy
(iv) None of these

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Fathom is the unit of measurement for...?

(i) Sound
(ii) Depth

(iii) Energy
(iv) Time

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A metal which is liquid at room temperature is...?

(i) Gold
(ii) Mercury

(iii) Platinum
(iv) Aluminum

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The first Astronaut to set foot on moon was...?

(i) Yuri Gagarin
(ii) Edmund Hailey

(iii) Tamayo Mendez
(iv) Neil Armstrong

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Abdus Salam was awarded Nobel Prize in Physics...?

(i) 1969
(ii) 1976

(iii) 1979
(iv) 1989

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The SI unit of "pressure" is:...?

(i) Pascal
(ii) Joule

(iii) Tesla
(iv) Henry

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Day and night changes due to...?

(i) Earth' revolution
(ii) Earth's rotation accompanied with its revolution

(iii) Earth's rotation around its axis
(iv) None of these

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