In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the 1.Decomposer microorganisms to the surface. 2.Nutrients to the surface. 2.Bottom-dwelling organisms to the surface. Which of the statements given above is/are correct?
1 and 2
2 only
2 and 3
3 only
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