Why do ecosystems and related plant communities in the Rocky Mountains show evidence of altitudinal zonation while the Appalachian Mountains in eastern North America do not?
What will be an ideal response?
The simplest answer is height. The Appalachian Mountains average about 3000 feet in height with the highest peak at ~6800 feet, whereas the Rocky Mountains can reach up to ~14,500 feet with vegetation zones at ~4000, ~6000, ~8000, ~10,000, and ~12,000 feet.
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An interdependent group of items interacting in a regular way to form a unified whole is a
A) system. B) network. C) toponym. D) hearth.
Earthquakes tend to do the most damage in economically advanced countries
Indicate whether the statement is true or false.
Fronts:
A) are rarely involved with cloud formation. B) have substantial temperature gradients at their boundaries. C) are best imagined as vertical walls of air. D) come in three major varieties—cold, warm, and mixed.
In a study of London gardens and their biodiversity, their distance from St. Paul's Cathedral, in downtown London was ________
A) negative up to a distance of 10 km, then the influence diminished B) not a factor in level of biodiversity C) a direct relationship with biodiversity D) erratic in influence, and no conclusion could be made E) an inverse relationship to biodiversity