Which of the following is not a nitrogenous fertiliser?
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Which of the following is a greenhouse gas or a gas, which can deplete the ozone layer?
Who discovered Penicillin?
Constitution Day of India is on ________.
Hopman cup is related to _______.
According to Dr. B. R. Ambedkar who shall be the most important officer under the Constitution of India?
Ratio of real to nominal GNP
Which country was, in October 2017, named the best country to visit in 2018, according to Lonely Planet 'Best in Travel 2018' list?