The angel appeared to Mohamed
The correct answer is: "There is a situation or shortage or of excess demand".
Rationing is an allocation system that is adopted in an economy when the amount produced cannot serve the whole demand and there is no price adjustment. This was the case during WWII. A possible rationing strategy could be "first come, first serve", for example or dividing the total output between the population and allocating a fixed ration for each person.
Answer:
The invention of the cotton gin.
Explanation:
The South being favourable to the climate depended on agriculture. Before the invention of Cotton Gin, cotton production remains limited to slaves. With the coming of Cotton Gin by Eli Whitney in 1793, it reduced the time and labour by removing seeds from the fibres. It increased the need for slaves in the plantations for cultivating cotton and picking the cotton fibres in fields. Cotton cultivation became beneficial for the cultivators. Many of the states in America began to emerge as slave states as the cotton production turn out to be profitable.
Bank failures because banks didn’t have a backup plan to ensure that everyone may get their money.