It can rapidly form in 500 years with a smaller layer, but normally formation takes 20-30 million years.
<span>people in areas with limited freshwater
Desalination is the process of removing salt from (usually) ocean water making it fresh water.
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The African countries can easily be described and generalized, in the sense of the whole continent, as the economies are predominantly dependent on one or two products.
That dependence on one or two products is making very big problems, and it is also a very big mistake of the governments. When there's a slight variation in the prices on the certain product, the economies are heavily influenced, often in a bed manner.
It is weird though that the African countries have orientated their economies in this way, especially because the continent is very rich in lots of natural resources.
Studying geography reveals human history.
