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.
Retrograde amnesia is the inability to recall past memories while anterograde amnesia is the inability to create new memories. Read the full article below for the explanation.
The longitudinal study shows that 55% of high school seniors in 2016 reported experimenting with marijuana in the last year.
<h3>What is a
marijuana?</h3>
This is a cannabis plant that is smoked or consumed and acts as a psychoactive drug for the user,
This longitudinal study shows that 55% of high school seniors in 2016 reported experimenting with marijuana in the last year.
Read more about marijuana
<em>brainly.com/question/13610689</em>
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