Compared to an ecosystem with just a single stage of succession, an ecosystem with a variety of successional stages
A) is more likely to experience forest fires.
B) has greater biodiversity.
C) is less likely to experience erosion.
D) has a much lower rate of primary productivity.
B
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When viewed without a stereoscope, the shadow on the left side (the north side) of this hill appears larger in the left image than in the right image. Why?
The question is based on Figure 32-3, a black-and-white stereogram, and color Maps T-20a and T-20b (in the back of the Lab Manual). These maps show the entrenched meanders of the Green River near Canyonlands National Park, Utah. A larger portion of this region is shown in color Map T-7 in the back of the Lab Manual. Begin by looking at the flat-topped, half-circle-shaped hill about 4 centimeters (1.5 inches) from the bottom of the stereogram. What will be an ideal response?
The origin of submarine canyons is not well understood but is most likely to be ____
A) erosional, caused by a combination of stream erosion and turbidity currents B) tectonic, representing down-folds of rock within the continental shelf C) organic, resulting from the activities of burrowing organisms D) glacial, through the process of depositing rock debris from melted ice on the shelf
What distinguishes a subarctic climate from a tundra climate?
What will be an ideal response?
Which of the following terms best describes the practice of environmental science?
A) elitist and unnecessary B) abstract and theoretical C) highly specialized and focused D) integrative and interdisciplinary E) theoretical and controversial