The unit to measure the quantity of Ozone in atmosphere is ?

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Wind always blows from area of ________?

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Where is the dirtiest skin of our body is located?

A. Feet B. Hands C. Face D. None...

Q. Which colour of light is deviated least________

A. Red B. Blue C. Violet D. Green...

746 watts are equivalent to_____________?

A. 1 Joule B. 1 erg C. 1HP D. 1 poise...

Energy possessed by water in a dam is ?

A: Electrical energy B: Mechanical energy C: Kinetic energy D: Potential energy...