The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere because it absorbs:
the water vapour of the air and retains its heat
the ultraviolet part of the solar radiation
all the solar radiations
the infrared part of the solar radiation
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