The pie chart shows the distribution of water around the world, while the bar graph illustrates the use of water among three countries. There seems to be no link shown between the two graphs, as the distribution of water does not cause a shift in the use of water.
There are two pie charts that illustrate the distribution of water, which are all water and fresh water only. The first graph shows the distribution of all water in the world, with salt water having 97 percent of all water and only three percent being fresh water. The fresh water is then divided into surface water, ground water, and water from ice and glaciers in the second graph. The lowest amount of water is surface water at one percent, followed by ground water; lastly, the highest proportion is ice and glaciers, which are 20 and 79 percent, respectively.
On the other hand, the use of water is illustrated among Egypt, Saudi Arabia, and Canada, with three sectors. Egypt and Saudi Arabia use the most water for agriculture, with around 80 and 75 percent, respectively, and the least for industry, which takes only about seven and 10 percent, respectively. Conversely, Canada uses the most water for the industrial sector and the least for agriculture, with around 80 percent and 10 percent, respectively.
In conclusion, the two types of graphs have no correlation at all, with the first describing the distribution of all water and fresh water, while the second graph illustrates the use of water among three sectors.