Which one among the following has been included as a parameter for the first time under the National Ambient Air Quality Standards (NAAQS) based on Central Pollution Control Board and IIT, Kanpur research, WHO guidelines and European Union limits and practices?
Sulphur dioxide
Oxides of nitrogen
Ozone
Carbon monoxide
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy