Ozone is found mostly at 15–55 km in the atmosphere.
Ozone is produced by gaseous chemical reactions.
16th November is celebrated as the International Day for the Preservation of the Ozone Layer
Ozone is a form of oxygen in which three oxygen atoms are bounded together.
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