When an international team of scientists pumped a carbon dioxide and water mix into underground basalt rocks, basic chemistry took over. The acidic mixture dissolved rocks’ calcium and magnesium and formed limestone. Basically carbon dioxide is converted into stone, exclaimed the scientists. Which one of the following statements best reflects the most logical, rational and practical suggestion implied by the passage?
It is a cheap and practical method to produce limestone at commercial level for building purposes.
This can be used as one of the methods of carbon sequestration.
Basalt rock can be made a good source of calcium and magnesium minerals by this method.
Good rock-dissolving acid can be produced by mixing carbon dioxide and water.
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