Direction: Read the following passage and answer the questions below based on the passage.

After a long time man invented something which changed the system of transportation in the world. It was the wheel. Yes, the same wheel that you see in bullock carts, a bicycle, a bus and a train. Today, it appears such an ordinary thing that one does not treat it as a great invention. But man took a long time in making this small object and understanding its utility. Formerly heavy loads had to be carried by men or animals. One can well imagine how difficult it was. Then someone must have realized that a round object moves faster than flat one. The first cart must have looked like a log of wood fitted with round wooden pieces. Removing the wheel from our life would mean bringing the entire civilization to a halt.