How did geography contribute to the rise of ghana mali and songhai

Niger River

Inland Delta

Sahel Region

Sahara Desert

It provided access to the large ports on the Atlantic.

The lack of fresh water made rulers here more warlike.

It provided a place for trade between the North and the South.

The desert was difficult for outsiders to invade.

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b