They were too large and expensive - typically a computer would fill a room and would have to have its own power supply.
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 correct answer is: False. Kennedy's political agenda was not known as the New Deal. The New Deal was the series of <span>domestic programs enacted in the United States between 1933 and 1938, which's goal was to defeat Great Depression. It was focused on so called 3 Rs: Relief, Recovery and Reform. John F. Kennedy (born in 1917) was elected for president of United States in 1960, and was assassinated in 1963. Some of the important historical events that took place during his presidency were: the building of the Berlin wall, the Nuclear Test Ban Treaty, The Bay of Pigs Invasion, developments in the Space race, etc.</span>
Answer:
A-the silk road increased contact between China and the Middle East
