The elevation on Earth tells how hot or cold is it gonna be. Hence, as the elevation on Earth increases the temperature continues to be colder while as the elevation decreases the temperature continues to get warmer
From small beginnings, South America grew to greatness because of maize. Just did this and it's correct.
Answer:
Athens had a large and capable navy
South America, i believe. You might want to double check this to be sure that it's right!