The line graph depicts global water usage across three sectors: agriculture, industry, and domestic use, while the table compares water consumption in Brazil and the Democratic Republic of Congo in 2000. It is evident that Agriculture consistently showed the highest water usage, reaching 3,000 km³ by 2000, while industrial and domestic use remained below 1,000 km³
It is noticeable from the line graph that global agricultural water use was around 500 km³ in 1900, doubling by 1950, and then increasing sharply to 3,000 km³ in 2000. In contrast, industrial and domestic water use remained nearly the same until 1950, after which industrial water use increased rapidly to nearly 1,000 km³ by 2000, while domestic use grew more slowly. The table shows Brazil’s water consumption far exceeded that of Congo in 2000, with Brazil’s population at 176 million and 26,500 km² of irrigated land compared to Congo’s 5.2 million people and 100 km² of irrigated land. Consequently, per capita water usage in Brazil was 359 m³, significantly higher than Congo’s 8 m³.
In summary, agriculture remains the largest sector of global water consumption, while industrial use has grown approximately. The comparison between Brazil and Congo reveals sharp disparities in water usage, with Brazil having much higher per capita consumption.