Explanation:
la número 3 porque la pasr de los años es así porque si
The scholars immediately disagreed over the causes of the war and they still disagree today.
Many maintain that the main cause of the was that the southern states desired to preserve the institution of slavery.
Others minimize slavery and point to other issues, taxation and principle of States' rights.
Says come to where his resources such as time attention and when you're limited they must choose how to best allocate them by making trade-offs the concept of trade-offs due to scarcity is formalized by the concept of opportunity cost the opportunity cost of a choice is the value of the best alternative forgone
The correct answer to this open question is the following.
Unfortunately, your question is incomplete. You did not include the description of the trade networks or the sources. Without that information, we do not know what you are talking about.
However, trying to help you with something, we can comment on the following example.
We can refer to the trade networks developed in the Trans-Saharan
trade. These traders were merchants of the African region -North and Western Africa- who traveled in caravans, using the camel to transport people and products across the deathly Sahara Desert.
They traded many products such as salt and gold, which were the most precious resources of the time. Gold was a valuable mineral with high value, and salt was as important to preserve food. But they also traded animal skins, ivory, silver, sugar, pepper, and slaves, to important trade centers such as Timbuktu and Djenne.
Lol. Here I am.. Saying whatever the heck I want. :)