The line graph and table illustrate global water usage trends across three sectors from 1900 to 2000 and compare water consumption between Brazil and the Democratic Republic of Congo in 2000.
Overall, global water consumption rose substantially across all sectors, with agriculture remaining the dominant consumer. Meanwhile, Brazil had significantly higher water usage per capita than the Democratic Republic of Congo, largely due to its extensive irrigated land.
Looking at the line graph, agricultural water consumption experienced a dramatic increase from approximately 500 km³ in 1900 to nearly 3,000 km³ in 2000, far exceeding other sectors. Industrial water usage remained relatively low until around 1950, after which it surged, reaching 1,200 km³ by the end of the period. Domestic water consumption followed a similar upward trajectory but at a much slower pace, rising from roughly 50 km³ in 1900 to nearly 500 km³ in 2000.
Turning to the table, Brazil had a population of 176 million, vastly larger than the 5.2 million people in the Democratic Republic of Congo. Additionally, Brazil possessed 26,500 km² of irrigated land, whereas Congo had just 100 km². As a result, Brazil’s per capita water consumption was remarkably higher at 359 m³, in stark contrast to Congo’s mere 8 m³.