Which among the following is the major cause of acid rain?
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Name the hottest planet.
In 1981, ISRO launched India's first geostationary satellite called -
Which of the following three R's are regarded as environment friendly?
Fruits and vegetables are good sources of
In a food chain, what is the difference between primary consumers and secondary consumers?
Where did Muhammad Bin Tughlaq shift his capital to from Delhi?
Who wrote the book -"The Argumentative Indian"?