The given line graph illustrates changes in the consumption of water worldwide between 1900 and 2000, while the table compares population, irrigated land and per-capita water consumption in Brazil and the Democratic Republic of Congo in 2000.
It is obvious that total worldwide water use increased significantly over the period, with agriculture consistently being the dominant sector. Additionally, water consumption was substantially higher in Brazil than in Congo, corresponding to its larger population and greater area of irrigated land.
Looking first at the line graph, agriculture recorded the highest level of water consumption, starting at around 500km3 in 1900 then increasing dramatically to reach 3000km3 at the end of the period. Similarly, an upward trend was also witnessed in the industrial and domestic use. In these categories, during the first few decades, their figures were relatively similar, at just under 100 km³, and remained nearly unchanged. However, industrial usage then grew significantly to around 1200 km³ by the end of the period, while domestic use experienced recorded a slight rise to approximately 350km³, remaining the smallest sector throughout.
Turning to the table, Brazil recorded much higher figures across all categories compared to Congo in 2000. Brazil had a population of 176 million and 26,500 km² of irrigated land, much higher than the figures for Democratic Republic of Congo, only 5.2 million and 100 km². Finally, the amount of water consumed per capita in Brazil and was 359 m³ and 8 m³, respectively