Bunuel
The practice of terrace farming, often associated with ancient civilizations, has been rediscovered in modern agriculture as a potential solution to soil erosion and water management challenges. Traditionally, terracing involved creating stepped levels on slopes, enabling crops to grow on otherwise inhospitable terrain. Recent studies suggest that this technique could also play a crucial role in combating the effects of climate change on farming.
Agronomists have noted that terraces can reduce water runoff, a major cause of soil erosion, by slowing the flow of rainwater down slopes. This allows water to seep into the ground, replenishing aquifers and increasing soil moisture. However, implementing terracing on a large scale presents significant logistical and economic challenges. Constructing terraces is labor-intensive and requires precise engineering to ensure stability and proper drainage.
Moreover, researchers have discovered that terracing can inadvertently alter local ecosystems. For instance, in regions where terracing has been introduced, certain plant and animal species have struggled to adapt to the modified landscape. These ecological shifts raise questions about the long-term sustainability of the practice.
Despite these concerns, proponents argue that terracing remains one of the most effective methods for improving agricultural resilience in hilly regions. Ongoing experiments aim to integrate modern irrigation technologies with traditional terrace designs to enhance their efficiency and reduce environmental disruption.
1 The passage most strongly suggests that certain plant and animal species have struggled to adapt to terraced landscapes because
A. terraces disrupt the natural flow of rainwater by slowing it down
B. the construction of terraces alters the physical environment of plant and animal species
C. terracing eliminates the natural habitats of most plant and animal species
D. traditional terracing methods do not affect the natural habitats of plant and animal species
E. terraced farming creates steep slopes that are difficult for species to navigate
2. Which of the following, if true, would most weaken the argument that terracing improves agricultural resilience in hilly regions?
A. Terracing increases the risk of landslides during heavy rainfall resulting in additional crop losses.
B. Certain regions have found it too expensive to implement large-scale terracing projects.
C. The use of terraces has been shown to reduce water runoff but sometimes does not prevent droughts during prolonged dry seasons.
D. Modern irrigation technologies are less effective on terraced landscapes.
E. Terracing has been shown to improve crop yields in only a small percentage of cases.
3. In the context of the passage, the main function of the first paragraph is to
A. introduce a subject and highlight its relevance to a broader issue
B. provide evidence supporting the main argument of the passage
C. summarize competing viewpoints on a topic discussed later in the passage
D. describe a historical practice and evaluate its long-term effectiveness
E. present a problem that the remainder of the passage seeks to resolve
Official Solution:1 The passage most strongly suggests that certain plant and animal species have struggled to adapt to terraced landscapes becauseA. terraces disrupt the natural flow of rainwater by slowing it down
B. the construction of terraces alters the physical environment of plant and animal species
C. terracing eliminates the natural habitats of most plant and animal species
D. traditional terracing methods do not affect the natural habitats of plant and animal species
E. terraced farming creates steep slopes that are difficult for species to navigate
A. Incorrect: The passage does not mention that the flow of rainwater affects plant and animal species.
B. Correct: The passage states that terracing "can inadvertently alter local ecosystems," causing struggles for some species to adapt to the "modified landscape." The keyword here is modified landscape and that matches up with B - altering of the physical environment.
C. Incorrect: While the passage mentions changes to ecosystems, it does not claim that terracing eliminates most habitats.
D. Incorrect: There is no mention of chemicals or harmful substances being used in traditional terracing methods.
E. Incorrect: The passage does not suggest that terracing creates steep slopes; it refers to terraces as leveled platforms designed to reduce slope challenges.
2. Which of the following, if true, would most weaken the argument that terracing improves agricultural resilience in hilly regions?A. Terracing increases the risk of landslides during heavy rainfall resulting in additional crop losses.
B. Certain regions have found it too expensive to implement large-scale terracing projects.
C. The use of terraces has been shown to reduce water runoff but sometimes does not prevent droughts during prolonged dry seasons.
D. Modern irrigation technologies are less effective on terraced landscapes.
E. Terracing has been shown to improve crop yields in only a small percentage of cases.
A. Correct: This option weakens the argument by showing that terracing could increase risk of landslides, which would contradict the argument that terracing improves agricultural resilience in hilly regions. This is the only choice that appears to weaken the argument.
B. Incorrect: While the expense of terracing is a logistical challenge, it does not weaken the argument about its effectiveness in improving agricultural resilience.
C. Incorrect: Although terracing may not prevent droughts in all cases, this does not undermine its benefits in managing water runoff and preventing soil erosion.
D. Incorrect: The reduced effectiveness of modern irrigation technologies on terraces is a limitation but does not weaken the claim that terracing improves overall resilience.
E. Incorrect: Limited improvement in crop yields does not directly contradict the argument about resilience, which focuses on soil and water management rather than yield.
3. In the context of the passage, the main function of the first paragraph is toA. introduce a subject and highlight its relevance to a broader issue
B. provide evidence supporting the main argument of the passage
C. summarize competing viewpoints on a topic discussed later in the passage
D. describe a historical practice and evaluate its long-term effectiveness
E. present a problem that the remainder of the passage seeks to resolve
A. Correct: The first paragraph introduces terrace farming and connects it to the broader issue of agricultural challenges, making this the most accurate description of its function.
B. Incorrect: The paragraph does not provide evidence; it sets up the topic.
C. Incorrect: There are no competing viewpoints discussed in the first paragraph.
D. Incorrect: The paragraph does not evaluate the long-term effectiveness of terracing but introduces its rediscovery.
E. Incorrect: The paragraph does not present a specific problem to be resolved; it highlights the broader relevance of terracing.