You should spend about 20 minutes on this task.
The charts below show the reasons why people travel to work by bicycle or by car.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
Developed countries have created many environmental problems in the World, particularly in their contribution to global warming.
Why is global warming a problem?
What can be done to reduce the dangers of global warming?