The moon shaped area of Mesopotamia is referred to as the due to its rich soil. Irrigation area
Mediterranean
Fertile Crescent
Babylon

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.

whats the question? im not quite understanding your question.

must repent and believe in god.

or the book

journey across time - chapter 10 "the rise of christianity"

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others