In India, there has been a four times increase in the production of food grains from 1960 to 2004, with only

We can increase the food production by

How can we increase food production?

By 1950 India is self sufficient in food production. It is due to

If energy has to be obtained from food it has to be

For a reaction Ato products, the rate of reaction is increased by 8 times when the concentration of A is doubled then

The population of a village increases continuously at the rate proportional to the number of its inhabitants present at any time. If the population of the village was 0,000 in 1999 and 25000 in the year 2004, what will be the population of the village in 2009 ?

How can the production of dihydrogen, obtained from coal gasification, be increased?

The sum of the ages of a father and a son is 45 years . Five years ago the product of their ages was four times the father's age at that time . Their present ages are