Select all the correct answers. Which two factors explain why salt was so valuable to West Africans?

A•Salt helped prevent dehydration in the hot climate.

B•Salt was used as a form of currency.

C•Salt was one of the exotic goods traded by the Asian traders.

D•Salt was used to preserve food.

E•Salt was available only in Zimbabwe.

A and D

Explanation:

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battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

a.

congress passed laws allowing for free passage between states.