Biodiversity forms the basis for human existence in the following ways: 1.Soil formation 2.Prevention of soil erosion 3.Recycling of waste 4.Pollination of crops Select the correct answer using the codes given below.
1, 2 and 3 only
2, 3 and 4 only
1 and 4 only
1, 2, 3 and 4
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