It made it harder for the countries to achieve unity.
One example for this is the separate existence of Chile and Argentina - they are separate counties, because they are separated by the Andes.
Generally, natural borders, such as rivers and jungles made the political unity harder.
yes there will be a new avatar series
THE ANSWER TO THIS QUESTION IS TRUE
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alterations in glutamate levels can produce schizophrenic like symptoms in normal subjects.
