Answer:
Mount Rushmore was by Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln.
Explanation:
The river are why they settled there.
Answer:
northwestern siberia and Western Alaska
Answer: The coastal plain separates inland plateaus from the Red Sea, the Arabian Sea, and the Persian Gulf. Environment Arabia's coastal plain ranges between 5 and 40 miles inland. It ends at a series of rocky cliffs. The air is damp and moist, and rain falls regularly.
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Answer:
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Explanation:
Inca's: They built a system of roads and bridges across the roughest terrains of the Andes. The Incas developed superb architecture and engineering techniques without the use of the wheel and modern tools. The Incas did not have a written language but had an accounting system. The quipu was a collection of colored strings of alpaca, llama or cotton threads used to record accounting information in the form of knots.
Maya: Maya Engineers created aqueducts which used water pressure technology. The Maya developed the only complete writing system in Mesoamerica.
Aztec: They perfected the technique of creating artificial islands called Chinampas. They constructed a double aqueduct to bring fresh water to Tenochtitlan.