Read the following passage given below and answer the questions that follow:
1.When a Man first began to settle down, to live in groups in village and to cultivate land, he found that he had to learn many new skills. One of these new skills was the ability to measure, to count and to calculate. He had to be able to count the animals he possessed. He had to be able to make simple measurements to enable him to build and to mark out the boundaries of his land ; he had to be able to measure the passing of time and record it ; and he had to trade. Therefore he began to think in terms of length, breadth, time and weight