The graph and table illustrate respectivelyinformation about worldwide water use by sector over a span of 100 years from 1900 to 2000and water consumption in Brazil and Congo in 2000.
As can be seen from the graph, global water use in three different sectors, namely,agriculture, industry and household clearly reveals two trends in the past century: slow increaseand fast increase. Comparing figures of the two sampled countries, we see that the differencesbetween Brazil and Congo were just huge.
Firstly, 1900-1950 was a trend of increase. Agricultural water use gradually increased fromthe original 500,000 cubic meters to 1,000,000 cubic meters in 1950. That of industrial andhousehold use remained almost unchanged, only rising from almost zero in 1900 to 500 cubicmeters and 200 cubic meters respectively in 1950.
Secondly, around 1950, agricultural water use entered a period of substantial increase,jumping from 1,000,000 cubic meters to 1,500,000 cubic meters in 1960. Afterwards, theincrease slowed down slightly, but then gained even stronger momentum and by 2000, it hadreached 3,000,000 cubic meters. After 1950, industrial water use also began to increasegreatly, arriving at 800,000 cubic meters in 1985. Then it continued to increase at an evenbigger rate and reached 1,200,000 cubic meters in 2000. Household water consumption startedto increase a little bit faster between 1950-1970, rising from 200 cubic meters to 400 cubicmeters, then the increase accelerated and quickly climbed to 300,000 cubic meters in 2000.
Thirdly, from the table, we see the huge disparities between Brazil and Congo inpopulation, irrigated land area and the average water consumption per person. Thepopulation of Brazil was over 170 million more than that of Congo, its irrigated land area was265 times that of Congo, and its average water consumption per person was almost 45 timesthat of Congo.
All in all, after having analyzed the graph and the table, we may safely draw the conclusionthat water is playing an increasingly important role in every aspect of our lives and that thewater consumption gap between the two sampled countries indicates that the more developed acountry is, the more water it will consume.
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