Prof. Falkenmark's Fun School Fifth issue

7/8

That means we humans can’t live without green water. But in those places, if you use green water carefully, you can grow grains and vegetables without relying on blue water.You can do that in places where there is plenty of water, like in Egypt.In Africa and some other regions, water is in short supply, so it can’t be used for the elds. But the river’s blue water is also necessary for humans to drink or use for other purposes.I see, but if there is no green water in the soil, like in desert areas, maybe we can give the river’s blue water to the elds?