Which layer of the earth's atmosphere contains the ozone layer?
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There are total _________ parliamentary seats (Rajya Sabha constituency) in Maharashtra.
The 2016 Olympics was held in which city?
Petrodava Dacian Fortress is a famous archaeological landmark in
Who discovered Uranus?
Who invented logarithms?
The Nobel Peace Prize 2016 has been awarded to ______ .
If cos4θ-sin4θ=13 then the value of tan2θ is