What describes the role of soil characteristics that influence biotic distributions?
A. edaphic factors
B. moisture availability
C. limiting factors
D. topographic factors
E. biological factors
A
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Explain the changes that occur in the carbon cycle and how it relates to long term changes in climate.
What will be an ideal response?
Under what conditions will the firn limit remain the same from year to year? Under what conditions
will it change? What happens if the firn limit moves upward year after year? What will be an ideal response?
Plate tectonic processes have influenced which of the following?
a. the distribution of earthquakes and volcanoes b. the locations of ore deposits and mountain systems c. climatic patterns and ocean circulation d. the geographic distribution, evolution, and extinction of life forms e. all of these
A large volcanic eruption can slightly cool the climate for a few years because ________.
A. volcanoes emit nitrogen (N2), a cooling agent in the atmosphere B. material they eject into the atmosphere reduces the amount of sunlight reaching Earth C. lava absorbs massive amounts of carbon dioxide as it cools D. volcanic gases bind with greenhouse gases, removing most of them from the atmosphere E. volcanic ash is good for soils and that speeds the growth of forests