Scientists believe that Mashkan-shapir's collapse was caused in part by destruction of the fields by mineral salts. When mineral salts concentrate in the upper levels of the soil, it becomes poisonous for plants. In Mesopotamia, irrigation was essential for crop production.
Answer:
He began by fortifying the Atlantic Wall in Normandy with more machine gun bunkers, millions of beachfront landmines, and by flooding inland marshes to trap Allied paratroopers. Rommel's strategic preparations would ultimately help the Nazis inflict terrible Allied casualties on D-Day.
Neutrality
Policy of supporting neither side in a war.
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<u>The correct answer is C. They were rejected by scientists, who believed farmers would always produce enough food. </u>Malthus's studies affirmed that the moment in which the land stopped producing enough food for all its inhabitants was inevitable. Over time it was proved that this theory was false since it did not consider important variables that would occur in the following decades, such as the implementation of birth control techniques and related technological advances applied to agriculture and food production .
