The line graph compares the amount of fuel produced in a European country over a period of 29 years. It is clear that petroleum was by far the most important power source over the period shown. Natural gas provided the lowest amount of fuel from 1981 to 1997, but it overcame coal to take second place. In 1981, petroleum was the main source of fuel in Europe, generating around 100 million tonnes of oil. Coal produced approximately 80 million tonnes of oil, and natural gas provided minimum fuel this year. For the whole 14-year period, fuel produced by natural gas remained relatively stable. Between 1995 and 2000, fuel production from coal fell to only 45 million tonnes. By contrast, the figure for natural gas had doubled since 1995, to around 85 million tonnes. During the same period, petroleum fuel generation rose dramatically to a peak of 130 million tonnes by 1997, but it plummeted to around 120 million tonnes since 2000.
- Some people think students should study the science of food and how to prepare it Others think students should spend time on more important subjects Discuss both views and give your opinion 73
- Some people say that individuals who make a lot of money are most successful Others think that those who contribute to society like scientists teachers are most successful Discuss both views and give your opinion 73
- Some education systems make students focus on certain subjects at the age of 15 while others require students to study a wide range of subjects until they leave school What are the benefits of each system Which do you think is a better educational system 61
- Some people believe that children should do organised activities in their free time while others believe that children should be free to do what they want to do in their free time Discuss both views and give your opinion 78
- Pollution of rivers lakes and seas is a major concern for people who seek to protect the environment What are the possible causes of water pollution and what effects does this have on animal life and human society 84