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In a word, irrigation. In southern Arizona, the Gila River (649 miles / 1,044 km) drains a watershed estimated to be almost 60,000 square miles. Its headwaters are in southern New Mexico, but it's a tributary of the Colorado River that separates Arizona from California. Today, over five million people live in that watershed area. The Gila River itself has many tributaries that feed it along the way. The indigenous people of the area (Pima, Hohokam) constructed over 200 miles of irrigation to support large, complex civilizations along the Middle Gila River and the Salt River (a 200-mile [320 km] tributary). The upper Gila was used by the Mogollon culture as well.
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What helped India develop for thousands of years without having to overcome invasions by foreign armies?
India's geographic barriers such as the Himalayas and the Indian Ocean helped protect it from invasions. Additionally, its vast size and diverse cultures made it challenging for foreign armies to conquer and control the entire region. India also had a rich civilization with advanced technologies and military strategies that deterred invaders.
What ideas did Stephen hawking help develop?
Stephen Hawking helped develop the field of theoretical physics and cosmology by working on the concept of black holes, the theory of general relativity, and the nature of the universe's origins and evolution. He also made significant contributions to the study of quantum mechanics and the search for a unified theory that could explain all physical phenomena.
What was one of the first animals to develop a true body cavity?
One of the first animals to develop a true body cavity was roundworms, also known as nematodes. This body cavity, called a pseudocoelom, helped provide support and structure to their bodies, allowing for more efficient movement and organ function.
Who was the metal smith who helped develop metal movable printer?
The metal smith who helped develop the metal movable type printing press was Johannes Gutenberg. In the 15th century, he invented a system that used movable metal type, allowing for the mass production of printed texts. His most famous work, the Gutenberg Bible, demonstrated the revolutionary potential of this technology, marking a significant advancement in the history of printing and communication.
Does stamen produce pollen?
Pollen
What mining of ores in a region southwest of Stockholm helped develop the iron industry of what country?
Sweden
Why do cultures develop along rivers?
The Tigris and Euphrates, or the Nile in Egypt helped develop cultures that were close to these rivers, because they provided water to drink, fertile soil, and transportation.
What helped develop the American identity by encouraging a belief in spiritual equality?
Enlightenment
What hepled develop the American identity by encouraging a belief in spiritual equality?
Great Awakening Helped develop American identity by encouraging a belief in spiritual equality.
Describe how religion has affected the development of southwest Asia?
The West and the oil industry support very conservative (Wahabi) Muslims who seek to retain non-democratic power.
What artist helped develop the what American abstract expressionist art style in the 1940s?
Jackson Pollock
What circumstances helped the civilizations and diverse cultures of the Americas to develop in ways both common and unique.?
Circumstances that helped the civilizations and diverse cultures of the Americas to develop in ways both common and unique are the early civilizations of the Americas created such vast empires with an advanced form of thinking and living. These civilizations lacked some of the essential tools that the Asian civilizations depended on to form there amazing empires.
How did increases in surpluses help American Indian economies develop?
It helped by evolving into currencies and the present day marketing
The Land Ordinance helped families develop these on small parcels of land?
it helped families develop farms.
How did the Santa Fe Trail change America?
The Santa Fe Trail helped the Southwest become settled and it made it easy to invade Mexico during the Mexican American War.
What river helped civilizations to develop in West Africa?
The Nile River helped civilizations to develop in West Africa.
What is the biography of RU Joyce?
Ruth Underhill Joyce was an American anthropologist known for her studies of Native American cultures. She focused on the Zuni and Papago tribes and wrote extensively about their traditional beliefs and practices. Joyce's work contributed greatly to the field of anthropology and helped to promote understanding and appreciation of indigenous cultures.
