The graph below shows radio and television audiences throughout the day in 1992. The line chart above presents the change of the number of audience of television and radio in a day in 1992. As we can see,the audience of television and radio rises to 8% and 28% before 11P.M. respectively,but radio audience went up dramatically while the television audience increased steady. Radio audiences reached a climax 28% at 11P.M,but,it tended to decline moderately to 15% at 17A.M,and started to climb up a little bit to a small peak between 17P.M to 19P.M.Then,dropped down to 10% at 21P.M.The radio audience remain went down to 4% from 21P.M to 7P.M in the morning. Differently,the television audience kept went up steadly to 9% at 13P.M.From 13P.M to 15P.M,it soared to 18% at 15P.M and the television leveled off between 15P.M and 17P.M and began to raise up to 25% dramatically at 19P.M,but,from 19P.M. to 21P.M,it jumped to 5% at 21P.M..After that,it dropped down to 40% at 23P.M and slumpped to 20% again at 1A.M and plunged to 10% at 3A.M.At last,it reduced to 6% during 3A.M to 7A.M. Overall,the radio audience tended to grow gradually before 11P.M and fall moderately after, on the country,before 21P.M television audience growed fluctuately and then started to decreased from 21P.M. to 7A.M on the whole.

2. The following pie charts illustrate the energy use in the USA. The pie graph above presents the use of energy in United States. Clearly,we can see that industrial consumption occupies the majority part of the energy use in USA with 14% while the commercial use accounts for only 14% comes last.26% of the use of energy in residential part lies second,which followed by the transportation use(19%). Fuether more,from the second chart we learnt that,in the residential energy use,the heating and air conditioning use takes up the biggest part,the heating water use comes next with 15%.The miscellaneous and the samll appliances use accounts for 13% and10% respectively ,ranked third and fourth. In a whole,the USA energy use is detered by industrial consumption.Also,the heating and air conditioning consumed the most chunk of energy in the residential area.