This sounds like a Revenue this is typically collected through taxes.
Answer:The main items traded were gold and salt. The gold mines of West Africa provided great wealth to West African Empires such as Ghana and Mali.
Explanation:
A boon. A boon is a thing that is helpful or beneficial.
Groupthink. According to Wikipedia, groupthink is “a psychological phenomenon that occurs within a group of people in which the desire for harmony or conformity in the group results in an irrational or dysfunctional decision-making outcome.”
Explanation:
melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities. As climate change worsens, dangerous weather events are becoming more frequent or severe.