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.
The answer is: Information gathering and evaluation of the intervention.
The baseline data usually include the result of our performance before we enter the program. This usually be done using a numerical score for easier measurement during the study.
The baseline data later on would be compared with the result of our performance after we finish the program in order to see whether the program is a success or a failure.
<span>Persons high in social dominance orientation tend to view people in terms of status hierarchies, with themselves being at the top.</span>