Which of the following statements with regard to Biosphere Reserve is/are correct? 1.The idea of Biosphere Reserve was initiated by UNESCO in 1973-74 2.There are 18 designated Biosphere Reserves in India 3.All Biosphere Reserves in India have been included in world network of Biosphere Reserves of UNESCO Select the correct answer using the code given below:

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