The given line graph illustrates the consumption trends of three types of fast food—pizza, fish and chips, and hamburgers—among Australian teenagers between 1975 and 2000.
Overall, the consumption of fish and chips decreased significantly, while the popularity of pizza and hamburgers increased over the period. By the end of the period, hamburgers had become the most consumed fast food.
In 1975, fish and chips were the most popular fast food, eaten around 100 times per year. However, their consumption fluctuated slightly until the mid-1980s before experiencing a steady decline, dropping to about 40 times per year by 2000.
In contrast, both pizza and hamburgers gained popularity. The consumption of hamburgers rose sharply from about 10 times per year in 1975 to approximately 85 times per year by 1985. After that, it increased gradually and stabilized at around 100 times per year in the 1990s. Similarly, pizza consumption followed a steady upward trend, starting at nearly zero in 1975 and reaching about 80 times per year by 1995, where it remained stable.
In conclusion, while fish and chips lost popularity, pizza and hamburgers became the preferred fast food choices among Australian teenagers. This trend suggests a shift in dietary preferences over time.
