The most direct and fundamental relationship between overgrazing and soil erosion is that
A. overgrazing causes eutrophication.
B. overgrazing leads to the loss of vegetation.
C. overgrazing leads to soil compaction.
D. overgrazing increases that amount of suspended particles in the air.
Answer: B
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Biodiversity is believed to be greatest when a habitat experiences
A. regular disturbances that are not too extreme. B. occasional large disturbances. C. no disturbances. D. either A or B
Which of these approaches offers the best chance to protect shrinking populations of endangered species?
A. Apply the precautionary principle. B. Wait until the exact cause and effect relationships have been scientifically documented. C. Apply traditional market place economics. D. Wait until they are almost extinct to do something.
Earthquakes can result in flooding only when they trigger a tsunami. Indicate whether the statement is true or false
A boundary in which crustal plates slide laterally past one another is called a ____
A) transform fault B) convergent zone C) divergent zone D) rift valley