Processes that are caused by forces from within the Earth are endogenous processes. By contrast, exogenous processes come from forces on or above the Earth's surface. Endo is a prefix meaning "in" while Exo is a prefix meaning "out". There are three main endogenous processes: folding, faulting and volcanism.
Shrimp burrow
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Deserts are a natural barrier between regions, they are difficult to travel through safely due to harsh conditions. Transport of goods and people is more costly and more difficult.
Libya and Ethiopia
and by the way i am from Libya that's why i knew the answer :)
