Answer:
When the war began, the U.S. economy was in recession. But a 44-month economic boom ensued from 1914 to 1918, first as Europeans began purchasing U.S. goods for the war and later as the United States itself joined the battle.
Explanation:
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Answer: B:
An underground rock formation that holds water.
Explanation:
The first reason is their size. They are very small and are very difficult to see. Special technology needed to be developed in order to observe them and their behavior and reach the conclusion that they were in fact infectious agents that could cause diseases. This wasn't possible before because the microscopes weren't as well developed.
Another is that they have a very long incubation period. This means that if you have them, a long time will pass before they start harming you which meant that many people believed them to be harmless since they couldn't track their behavior over a longer time period, also due to the lack of good technology.
Answer: Gold jewellery pieces have been found as well as objects made locally using both copper and bronze, and a small number of glass beads, most likely from India and brought to the city by trans-Saharan camel caravans. Amongst the most interesting finds at Djenne-Djenno are terracotta sculptures.
Explanation:
