answer 3
Rope bridges: helped the Incas travel long distances and communicate with their neighbors. The Incas were masters of using fiber as a material to solve their problems and one of their most famous creations is the rope bridge. They were able to create incredibly long structures made of ichu grass, which was woven into large bundles to create bridges that were an integral part of the Inca road network. Chinampas: Helped the Aztec Farm to be more productive. Chinampas were a type of agriculture that used small rectangular areas of fertile land to produce food in shallow lake beds in Mexico. Also known as the “Floating Gardens”, it was not originally developed by the Aztecs. This tribe was the first to use this invention as a form of large-scale cultivation. Pyramid of Chichen Itza: Helped the Mayans to see astronomical phenomena like eclipses with the naked eye. This construction known as the Pyramid of Kukulcan or The Castle in Spanish has an astronomical purpose among its many uses. It allowed the Maya to view events in the sky without any additional viewing aids, and it also functioned as a true solar calendar (each of the four sides of the pyramid has 91 steps, and adding the last step on the platform- higher form, they add up to 365, the number of days on your calendar.)
answer 2
Rope bridges are the answer. Explanation: The Inca Empire, also known as the Inca Empire and the Inca Empire, was the largest empire in pre-Columbian America. Cusco was the most important city, as it was the administrative, political and military center. Inca rope bridges are suspension bridges over canyons and rivers built by the Inca Empire. They were part of the Inca road system and testify to Inca innovation and engineering and were very useful as the Incas did not use wheeled transport.
answer 4
The Inca road system
Answer 1
helped the Aztec farm be more productive – chinampas helped the Incas travel long distances and communicate with their neighbors – rope bridges helped the Mayans see astronomical phenomena like eclipses with the naked eye – piramaid at Chichen Itza