The main factor was the utilization of raised field agriculture. They would build these fields that had been artificially raised to a certain height along a flowing water source (mostly rivers but occasionally streams as well in some cases). When tropical weather patterns would cause said water sources to flood, instead of washing away the crops, it would act as irrigation for the raised fields. Securing a steady food source allowed the Mayans to support a large civilization in the tropical regions they called home.
The science of adjusting environments, tasks, or procedures to fit the individual is ERGONOMICS. In other words, it is also defined as the study of a worker's efficiency in a workplace and how this efficiency can be improved together with the well-being of the worker.
In 1999, all nations agreed to adopt the euro except Britain.
So correct option is B
The political, economic, and diplomatic crises of the 1780s played a great role in shaping the Constitution because they proved that the United States needed a much stronger central government that could tax freely and engage with other countries.
The Three Principles of the People are
1. nationalism--the Chinese should rule themselves
2. democracy--China should have a constitutional government in which all Chinese were considered equal
<span>3. livelihood--Every Chinese man should be provided the means to support himself and his family</span>
