ESS 120 Final Exam | 219 Questions and Answers(A+ Solution guide)

Examples of sustainable prehistoric civilization(s) include..... - Inca and Zuni Hopi and Zuni maize is...... - Open-pollenated and drought-tolerant The Zuni use small rock dams to slow and diffuse the water onto their agricultural fields. These rock dams work well when...... - Rainfall is more intense The Inca abandoned terraces because..... - The terraces were above the irrigation canal and were no longer needed due to the population crash The Incan terrace soils had high levels of phosphorus due to..... - Long-term applications of bird dung carried up from the coast The soils in the Incan terraces were approximately [...] years old based upon radiocarbon dating. - 1,500 The Zuni used fields with [.....] horizons due to their intrinsic ability to hold more water. - Argillic According to Hardin, the commons only works under..... - Low population pressure An example of a way to maintain the commons is by.... - Having hunting and fishing laws the limit individual harvest of the commons An example of the destruction of the commons would be... - Over-fishing Over-hunting The current amount of plastic in the ocean People driving in the left lane who refuse to yield to faster carsHardin makes an interesting case by saying that the only way to preserve our freedoms is by...... - Abandoning freedom to breed The bottom line on Hardin's essay is that.... - Overpopulation will lock the world into a tragic course of action The Anasazi are from the.... - Southwest US The problem with the area that the Anasazi settled is that..... - They settled in a fragile and marginal environment The study of tree rings is... - Dendrochronology Humans reached the area settle by the Anasazi in approximately...... - 11,000 BC Corn-maize-was first domesticated in central Mexico in approximately..... - 3,500 BC The "Three Sisters" refers to.... - corn, beans, and squash One factor that contributed to the demise of the Anasazi was their choice to..... - Move to marginal areas that were productive during rainy periods The Hohokam Canal irrigation complex near Phoenix showed evidence of farming for [....] years and covered an area of approximately [...] square miles - 3,500 : 100 Field building is when farmers..... - Allow sediment-laden, flood water to abruptly flow on their fields which allows sediment to drop out on the chosen site