A.) An economic system based on communism.
Answer:
It helped them find their way to new countries by land and water.
D. The reason for the fall of the Maya civilization is still unknown. There are many different theories attempting to explain the cause of the Classic Maya collapse and the abandonment of Maya cities in the southern Maya lowlands of Mesoamerica between the 8th and 9th centuries: climate change, drought, deforestation, etc. but although the drought is the leading theory at the moment the truth is yet unknown.
Answer:
Aqueduct
Explanation:
an artificial channel for conveying water, typically in the form of a bridge across a valley or other gap.
Answer: A new permanent
Explanation:
On July 16, 1790, a compromise between Thomas Jefferson, Alexander Hamilton and James Madison—known as the Residence Act—was passed, declaring George Washington's selection of a site on the Potomac River as the nation's new permanent capital. As part of the agreement, the federal government assumed the states' debts.
