Nowadays, international tourism is the biggest industry in the world. Unfortunately, international tourism creates tension rather than understanding between people from different cultures. To what extent do you agree or disagree with this opinion?

The line graph illustrates the number of subscribers of two types of telephone in Africa between 1995 and 2004. It is clear that both mobile and telephone subscribers increased during the 10-year period. However, while the figure showed a slight increase for the fixed telephone subscribers, the number of mobile subscribers rose dramatically. Besides, we can see that African inhabitants who were interested in fixed telephone lines were vividly more than the mobile Telephone. In 1994, 1.7 of African inhabitants subscribed to fixed telephone, while only 0.06 of them were interested in mobile phones. Both types of telephone increased slightly during the following 5 years, but in 1999 we see a sharp increase in mobile subscribers. In 2001, both figures show the same amount of approximately 2.7. afterward, mobile subscribers raised up rapidly and reached a peak of 8.8 in 2004. whereas the figure for fixed telephone continued to slight increase and reached 3.1 by 2004.
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