The effects of the loss of the world's rain forests include:
A. a reduction in atmospheric oxygen
B. major changes in world climates
C. a loss of fuel and food plants
D. all of these
D. all of these
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The relatively recent creation of virtual worlds has attracted contemporary ethnographers to venture into online communities. Of the various techniques used to study these virtual worlds, which has been most important?
A. life histories B. genealogical method C. key consultants D. participant observation E. interviews
Prior to the 1950s, motorcycle riding had what many perceived as an image; that it was suitable for
a. average Americans. b. women only. c. outlaws. d. couples.
The high level of intensification and long-term dependability of horticulture paved the way for the emergence of large urban settlements and the first states
Indicate whether the statement is true or false.
The transition between premodern and anatomically modern forms of humans may have occurred as early as 500,000 years ago in Africa
Indicate whether the statement is true or false