Viết ít nhất 150 từ trong khoảng 20 phút.
The line graph shows the recycling rates in the U.S. from 1960 to 2011. It shows the total amount of waste that was recovered in million tons, and the percentage of waste that was recycled.
Overall, both the amount of waste recovered and the percentage of recycling increased a lot during the period. The biggest increase happened after 1985.
In 1960, only 5.6 million tons of waste were recovered, and the recycling rate was 6.4%. These figures changed very little until 1975, when the amount was 9.3 million tons and the percentage was 7.3%. In 1985, the amount of waste recovered increased to 16.7 million tons, and the recycling rate reached 10.1%.
After 1985, the figures rose very quickly. In 1990, 33.2 million tons of waste were recovered, which was double the 1985 figure, and the recycling rate was 16%. In 1995, the amount rose to 55.8 million tons and the rate was 25.7%. Both figures continued to increase, and in 2011, 86.9 million tons were recovered and the recycling rate was 34.7%.