The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? 1.There are no clouds or water vapor in the lower stratosphere. 2.There are no vertical winds in the lower stratosphere. Which of the statements given above is/are correct in this context?

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