Discuss the concept of isostasy. Provide evidence that it occurs and examples of its effects. What will be an ideal response?
Isostasy is the concept that lithospheric blocks “float” on the plastic, denser asthenosphere. This
can be seen by ice cubes floating in water or by the effects of icebergs in the ocean. Glaciers
depress the continental crust because they exert increased weight on the lithosphere. After they
melt, the lithosphere slowly returns to normal, rising in elevation. This can be seen adjacent to
shores in places like Scandinavia.
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Instructions: Choose one answer from each pair or group of selections. The wettest places in the world tend to be located on the WINDWARD | LEEWARD side of mountains where warm, humid air rises upslope
The type of gravity-driven, downslope movement that results in a deposit of chaotically mixed fragments of different sizes with a very irregular, bumpy upper surface is called
A) fall. B) slide. C) slump. D) creep. E) flow.
To maintain steady total populations in future decades, most European countries will need to
A) decrease fertility rates. B) increase their total fertility rate and/or accept more immigrants. C) encourage emigration. D) encourage the use of birth control.
The soil-forming factor that has the least effect in differentiating soil at the local level is ____
a. parent material b. land surface configuration c. climate d. vegetation type e. organic activity