The important natural resource in West Africa that the Songhai Empire controlled was salt.
This salt was predominantly found in the Sahara desert - there are still a lot of salt mines in this West African desert. The Songhai Empire heavily relied on salt trade, which brought most of its money into the empire - this is the reason why it was so powerful at the time - because of salt and gold.
Industrial Consolidation and trust reduced competition.
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Answer:
The iceman and his site reveal that between 9,000 and 5,000 years before present the Alpine glaciers were smaller than in the second half of the Holocene (the last 10,000 years of geological history).
Explanation:
The ideas of the Enlightenment inspired both the American and French Revolution. The Revolution was based on the principles of liberty, equality, and fraternity. Philosophers of the Enlightenment, known as philosophes, favored limited monarchy, freedom of speech, and equality.