Bicycling, according to the speaker, is mainly a form of______. [originaltext]

Bicycling is one of the fastest growing forms of recreation. People are drawn to it for many reasons, being out in the fresh air, the thrill of speed, the physical challenge, along with many other things. But there can be many more uses for the bicycle, for example, transportation.
     The use of bicycles can greatly improve the economy of a nation.  A comparison between the efficiency of the transportation systems of the United Stated and Japan points this out. In 1990 Americans spent 17.9 percent of the GNP on transportation, whereas the Japanese spent only 10. 79 percent on transportation. This difference of nearly 7 percent, gives the Japanese economy much more money for investing in their future.
     Our economy is not the only thing we should worry about, and it is also not the only thing that can be improved by the use of bicycles. There are several major problems that could be drastically reduced by the increased use of bicycles. Traffic would be a lot lighter due to the extremely small size of bicycles. It would also greatly reduce the wear and tear on our roads and highways, and therefore reduce government expenditure. But one of the most serious problems it would reduce is that of pollution and smog in our larger cities.