Radiocarbon dating
A) is good primarily for recent climate changes.
B) can be used to estimate the age of pollen grains.
C) requires measuring the amount of Lead-206 in order to estimate the age of tree rings.
D) has not yet been of much use for the study of past climates.
E) none of the above
B
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Agglomeration economies take several forms including EXCEPT
A) production linkages. B) service linkages. C) marketing linkages. D) urbanization economies. E) diseconomies of scale.
How did the debris from the Gros Ventre Landslide of 1925 lead to another disaster in the same region in 1927?
A) Loose debris resulted in a mudflow. B) The mass movement of sediment contaminated drinking water. C) The debris blocked the river, creating a lake that later burst. D) The debris mixed with river water to create a lahar.
Which circumstance will force a wave displaying circular orbital motion to slow down at the base, which allows the wave to break?
A) The water gets deeper. B) The seafloor is uneven. C) The wave is refracted. D) The wave feels bottom with shallower depth.
Figure 3.5 in your textbook shows that life expectancy varies between countries, but ____________ has the lowest life expectancies of any continent.
Fill in the blank(s) with the appropriate word(s).