Answer:
salt
Explanation:
because in Africa salt was rare
A nation is able to regulate its imports and exports through the use of instruments such as trade protection and trade arrangement.
<h3>What are exports?</h3>
These are the goods that a country brings in to their nation from another nation.
<h3>What are imports?</h3>
These are the goods that are brought in from other places to a particular country.
The way to regulate these trade is by the use of tools such as trade tariffs and the use of trade agreements between nations.
Read more on exports and imports here:
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The Romans' first code of law was established around 200 B.C
