The best approach for slowing worldwide deforestation will require ________
A) limiting biodiversity losses
B) focus on charcoal use in developed countries
C) focus on soil erosion issues
D) multiple strategies
E) focus on limiting consumption in developing countries
Answer: D
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The ____ accounts for 83 percent of Earth's volume
A) mantle B) inner core C) crust D) outer core
A geologist is working in an area of old volcanic rocks exposed by erosion. He finds a large rock outcrop that contains flat lying gravels in the base of the outcrop
These gravels are overlain by basalt that forms a series of layers representing flows. The uppermost basalt lava flows have a dip of about 10 degrees to the west. What does this outcrop record? A) Gravels were initially deposited in a river valley and a cinder cone was erupted, damming the valley, before a cinder cone formed. B) Basalt flows formed after gravels were deposited, covered the local terrain, and built a shield volcano with dips of about 10 degrees. C) Basalt flows formed above a series of gravels, filling a river valley. D) You can't tell anything about the history of this region from this outcrop.
All of the following are evidence supporting the theory of plate tectonics except for ________
A) changes in the Moon's orbit due to shifting plates B) hot spots C) ocean floor drilling D) paleomagnetism
Hunting and gathering societies
A) include about 15 percent of the world's people. B) are found in isolated places in the world. C) are characterized by large concentrations of people. D) occur nearly everywhere but are especially common in Europe. E) are responsible for most of the environmental degradation of the planet.