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The table below gives information about the underground railway systems in six cities.
Full essay (band 9):
The table shows data about the underground rail networks in six major cities. The table compares the six networks in terms of their age, size and the number of people who use them each year. It is clear that the three oldest underground systems are larger and serve significantly more passengers than the newer systems.
The London underground is the oldest system, having opened in 1863. It is also the largest sy stem, with 394 kilometres of route. The second largest system, in Paris, is only about half the size of the London underground, with 199 kilometres of route. However, it serves more peopl e per year. While only third in terms of size, the Tokyo system is easily the most used, with 1 927 million passengers per year.
Of the three newer networks, the Washington DC underground is the most extensive, with 12 6 kilometres of route, compared to only 11 kilometres and 28 kilometres for the Kyoto and L os Angeles systems. The Los Angeles network is the newest, having opened in 2001, while th e Kyoto network is the smallest and serves only 45 million passengers per year.
(185 words)
water cycle' essay The diagram below shows the water cycle, which is the continuous movement of water on, above and below the surface of the Earth.
The picture illustrates the way in which water passes from ocean to air to land during the natural process known as the water cycle.
Three main stages are shown on the diagram. Ocean water evaporates, falls as rain, and eventually runs back into the oceans again.
Beginning at the evaporation stage, we can see that 80% of water vapour in the air comes from the oceans. Heat from the sun causes water to evaporate, and water vapour condenses to form clouds. At the second stage, labelled ‘precipitation’ on the diagram, water falls as rain or snow.
At the third stage in the cycle, rainwater may take various paths. Some of it may fall into lakes or return to the oceans via ‘surface runoff’. Otherwise, rainwater may filter through the ground, reaching the impervious layer of the earth. Salt water intrusion is shown to take place just before groundwater passes into the oceans to complete the cycle.
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