In its simple form, science has helped man protect himself from nature. But now, nature needs protection from man. Man uses nature’s gifts, even his brain, to attack nature. Forests are destroyed not just for needs but for luxuries. This has led to climate change and soil erosion. Man must now protect nature if he wants it to protect him. What causes climate change and soil erosion?

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