Study the passage carefully and answer the following questions.     Whatever the problem, someone can always oversimplify it. Sometimes a problem is simpler than it seems at first sight, and a cool mind can point to an easy answer. More often though, the simple answers don’t really meet the case. A great scientist of an earlier day, Sir Arthur Eddington, once said that we often think that when we have completed our study of one, we know all about two, because “two is one and…

Study the passage carefully and answer the following questions. India is chiefly an agricultural land. The cultivation of crops depends on a proper supply of water throughout the year. Since olden times, large parts of our country have suffered from occasional periods of too much rain and those of drought. People have known that if…