2- Reading a graph, the pie-chart.

a) What changes are shown in the pie-charts? In the first pie-chart (UK employment in 1920) the sector most important is the secondary, the next is the tertiary and the last is the primary sector. In the second pie-chart (UK employment in 1995) the most important is the tertiary sector and the least important is the primary sector.

b) Give reasons for the changes shown in the two pie-charts? In the first pie-chart the sector with biggest influence was the secondary because the industries have grand importance and the 45% work in this sector. Now the most important sector is the tertiary because it includes more activities than the sector tertiary sector in 1920 and it´s different. Example: the sanitation is better than the sanitation the 1920.