ESS 120 FINAL EXAM- UTK EASH | 500 QUESTIONS WITH 100 % CORRECT ANSWERS | VERIFIED

____ is added to acidic soil because it adjusts pH to the point that most soil macro- and micro-nutrients are plant available. - Lime __________ had humans on its soil for more than 46,000 years, had few inputs from the outside world, was near the equator, and no European explorers until the 1930s. - Papua New Guinea ___________ will catch fire during harvest of sugar cane in Florida (only one soil order will catch fire). - Histosols 1 billion people go to bed hungry every night...why? Enough food produced or not? - -enough food is produced but it is poorly distributed -20% of population is undernourished A ____ approach works best on smaller islands with shared interests. - Bottom up A good estimator of soil productivity is _________. - A thick A horizon with lots of roots A good example of map the Vikings may have used to get to countries they overtook would be ____________. - (North America, Great Britain, Greenland) A wind break with 40% porosity that is 60 feet tall will basically stop wind erosion if the windbreaks are planted _____ mile(s) apart - 0.5 According to Donnie Smith, there are peer-reviewed research papers that indicate that feeding GMO feed grains to livestock poses a well-accepted health risk to consumers. - False According to Hardin, the commons only works under _____________. - Low population pressureAccording to Hicks' lecture, the USA could have purchased Greenland after WWII. - True According to Jared Diamond, Easter Island is a clear example of a society that destroyed itself by over exploiting its own resources. - true According to McKay, the world could handle how many people if they were naked, cold and ate just corn? - 33.1 billion people According to soil scientists how much time does it take to form an inch of topsoil? - At least 100 years According to soil scientists much time does it take to form an inch of topsoil? -At least 100 years According to the Authoritative Intergovernmental Panel on climate change, temperatures are expected to rise over what range (in Celsius) during the next century? - Between 1.1 - 6.4 degrees According to the Hicks' lecture, methane hydrate or clathrates could be an important source of energy and is being explored by many countries - True According to the text read in class, the Bushmen ___________. - All of the above ("Never exceeded their proportions) (Never killed an animal unless they needed food) (Were not attacked by lions) (Would scale tall cliffs for honey) According to Thomas Malthus, population, when unchecked.... - Increases in a geometrical ratio, while human subsistence increased by an arithmetical ratio