Consider the following: 1.Photosynthesis 2.Respiration 3.Decay of organic matter 4.Volcanic action Which of the above add carbon dioxide to the carbon cycle on Earth?
1 and 4 only
2 and 3 only
2. 3 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