The greenhouse effect is a natural phenomenon that keeps the earth's surface warm. Without greenhouse gases-water vapor, carbon dioxide, methane, nitrous oxide, halocarbons, and ozone-life as we know it wouldn't exist. The current problem is that
A. the atmospheric concentration of greenhouse gases has reached its highest level in 400,000 years and will continue to rise, as will global temperatures, without actions to slow it down.
B. most scientists dispute the anthropogenic reasoning for high concentrations of greenhouse gases.
C. it is difficult to distinguish between climate change and global warming.
D. scientists cannot agree on a general model of how the greenhouse effect went from being a positive to a negative and a life-threatening force.
E. global warming actually benefits 90 percent of the world's population, so it is difficult to mobilize the will to address the anthropogenic causes of climate change.
Answer: A
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Today's global economy and communications link all contemporary people, directly or indirectly, in the modern world system. People must now cope with forces generated by progressively larger systems-the region, the nation, and the world. For anthropologists studying contemporary forms of adaptation, why might this be a challenge?
A. Anthropological research tools do not work in this new modern world system, making their contributions less valuable. B. Truly isolated indigenous communities, anthropology's traditional and ongoing study focus, are becoming harder to find. C. According to Marcus and Fischer (1986), "The cultures of world peoples need to be constantly rediscovered as these people reinvent them in changing historical circumstances." D. A more dynamic world system, with greater and faster movements of people across space, speeds up the process of evolution, making the study of genetic adaptations more difficult. E. Since cultures are tied to place, people moving around and connecting across space means the end of culture, and thus the end of anthropology.
Molecular anthropologists have used genetic technologies to investigate the relationships between human populations as well as nonhuman primates
Indicate whether the statement is true or false
Development projects should aim to accomplish all of the following EXCEPT
A. promoting change, but not overinnovation. B. respecting local traditions. C. preserving local systems while working to make them better. D. developing strategies with little input from the local communities. E. drawing models of development from indigenous practices.
Archaic Homo remains exhibit a mix of features of both Homo erectus and ____________
a. Australopithecines b. Homo habilis c. modern Homo sapiens d. Pithecanthropus