Reading Comprehension Supporting Details Mock Tests

Read the following passage: "The phenomenon of "ocean acidification" occurs when carbon dioxide from the atmosphere dissolves in seawater, forming carbonic acid and lowering the water's pH. Since the beginning of the industrial era, ocean surface pH has dropped from approximately 8.2 to 8.1 -- a seemingly small change that represents a 30% increase in acidity. This shift threatens calcifying organisms such as corals, oysters, and certain plankton species, which rely on carbonate ions to build their shells and skeletons. A particularly concerning development is that some coral reef systems in the South Pacific have already begun to dissolve during nighttime hours, when photosynthesis stops and carbon dioxide accumulation peaks. Scientists warn that if current CO2 emissions continue, many reef systems could become net sources of dissolved carbonate rather than sinks by the end of the century." Which of the following is mentioned in the passage as a factor that exacerbates coral dissolution at night?

Read the following passage: "Microplastics — plastic particles smaller than five millimeters — have been detected in every ecosystem on Earth, from the deepest ocean trenches to the highest mountain peaks. A 2024 global survey found microplastics in 90% of sampled bottled waters and 80% of tap water sources. These particles originate from a variety of sources: the breakdown of larger plastic debris, microfibers released from synthetic clothing during washing, and microbeads once commonly used in personal care products. While the health effects of microplastic exposure in humans remain understudied, researchers have documented significant harm to marine life, including ingestion by filter feeders, entanglement, and the transfer of toxic chemicals up the food chain." According to the passage, which of the following is NOT mentioned as a source of microplastics?

Read the following passage: "In her memoir, the journalist recounts her time covering conflicts in three different countries. The narrative is striking not for its graphic descriptions of violence, but for its quiet focus on the everyday lives of civilians caught in the crossfire. Each chapter centers on a single individual — a teacher in Syria, a nurse in South Sudan, a shopkeeper in Ukraine — and through these intimate portraits, the reader gains a nuanced understanding of how war disrupts not just infrastructure, but the fabric of human connection." The author of the passage suggests that the memoir is distinctive primarily because it:

Read the following passage: "The Renaissance period witnessed an extraordinary flourishing of artistic achievement, particularly in Italy. Artists such as Leonardo da Vinci and Michelangelo pioneered techniques in linear perspective and chiaroscuro, the use of strong contrasts between light and shadow, which gave their works an unprecedented sense of depth and realism. However, art historians have noted that these innovations were not purely aesthetic — they reflected a deeper philosophical shift toward humanism, which placed human experience and individual potential at the center of intellectual inquiry." The author of the passage suggests that Renaissance artistic innovations:

Read the following passage: "The rise of algorithmic content curation on social media platforms has sparked debate among researchers. Some argue that algorithms, which optimize for user engagement, create "filter bubbles" that expose users only to content aligning with their existing views. However, a 2024 meta-analysis of 47 studies found that while users are indeed exposed more frequently to confirming content, they still encounter disconfirming viewpoints at a rate comparable to non-algorithmic content distribution. The researchers concluded that the filter bubble effect, while real, is significantly overstated in popular discourse and that user agency -- the conscious choices users make in following, liking, and sharing -- plays a larger role than algorithmic design in shaping information diets." According to the passage, the 2024 meta-analysis found which of the following about filter bubbles?

Read the following passage: "The practice of crop rotation -- planting different crops in the same field across successive seasons -- has been used for centuries. Ancient Roman farmers rotated between legumes and cereals, observing that fields planted with legumes produced better cereal yields the following year. Modern science has now explained why: legumes host nitrogen-fixing bacteria in root nodules that convert atmospheric nitrogen into forms plants can use, effectively fertilizing the soil for subsequent crops. However, the widespread adoption of synthetic nitrogen fertilizers in the twentieth century led many farmers to abandon crop rotation in favor of monoculture -- planting the same crop year after year with chemical inputs. This shift has had unintended consequences: soil degradation, increased pesticide resistance, and higher fertilizer costs. Agricultural researchers are now advocating a return to rotation-based systems, combining the best of traditional knowledge with modern precision agriculture." The passage suggests that the twentieth-century shift to synthetic fertilizers had which of the following unintended consequences?

Read the following passage: "Microplastics -- plastic particles smaller than 5 millimeters -- have been found in every ocean basin, from surface waters to the deepest trenches. A 2024 meta-analysis examined 312 studies published between 2015 and 2023 and found that the average ocean surface contains approximately 18,000 microplastic particles per cubic kilometer of water. The analysis identified packaging materials as the single largest source, accounting for 46 percent of all microplastics detected. Fishing gear and personal care products were the second and third largest sources, at 22 percent and 8 percent, respectively. The remaining 24 percent came from tire wear, synthetic textile fibers, and industrial processes." According to the passage, which of the following is the second largest identified source of microplastics in the ocean?

Read the following passage: "Artificial intelligence systems trained on large datasets of scientific literature have begun to make discoveries that human researchers might overlook. In a 2023 study, an AI system analyzing gene expression data from cancer patients identified a previously unrecognized pattern linking specific genetic markers to treatment resistance. The pattern had been present in the data all along, but human researchers, guided by established theories about how cancer cells respond to chemotherapy, had overlooked it. This does not mean that AI will replace human scientists; rather, AI excels at pattern recognition in complex datasets, while humans excel at contextualizing findings within broader theoretical frameworks. The most effective scientific workflow, researchers conclude, combines AI-driven pattern discovery with human hypothesis formation and experimental design." The passage suggests that the AI system identified the genetic pattern because: