Given the nature of the phosphorous cycle, what are the long-term impacts on South American soil quality through the exportation of beef cattle?
What will be an ideal response
Beef cattle raised in South America are feeding on grasses grown on South American soils. These plants require phosphorous resources from the soils in which they grow. As a result, the South American soil phosphorous is transferred to the beef cattle. If the cattle are then exported to North American consumers, the phosphorous is also exported. This prevents the phosphorous from being recycled back into the South American soils, as is typical in a naturally functioning ecosystem. Over long periods, this results in a depletion of South American soil nutrients (phosphorous).
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Why do the Cfb (marine west coast) climates, just poleward of the dry summer Cs climates, receive rain all year?
The following questions are based on the diagram of the Köppen climate distribution on a hypothetical continent (Figure 23-2). It may also be helpful to compare the hypothetical continent with the map of actual climate distribution color Map T-29 in the back of the Lab Manual and Figure 23-3 showing the influence of the seasonal shifts of the ITCZ and subtropical highs along the west coasts of continents. In answering the questions, consider both the characteristics of a climate and the dominant controls producing that climate.
A generally accepted, thoroughly tested explanation for a set of observations is a:
A. Hypothesis B. Scientific method C. Scientific Law D. Scientific Theory
The loss of a particular population from a given area (but not the entire species globally) is called ________
A) emigration B) extirpation C) extinguishment D) extinction E) exposition
Where did capitalism begin?
A) The Middle East B) China C) India D) United States E) Northern Italy