TOEFL iBT Reading

Reading — Test 13

10 questions. Answer them all, then submit once for your section score.

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TOEFL iBT Reading — Test 13 | Question 1 of 1000:16:00
Reading passage
The Emergence of Paleolithic Cave Art For much of the twentieth century, scholars regarded the elaborate paintings found on the walls of caves in southwestern Europe as a kind of sudden artistic miracle, an inexplicable flowering of creative genius that appeared abruptly among Upper Paleolithic humans roughly 40,000 years ago. This view has been substantially revised as dating techniques have improved and as more sites have been discovered across a wider geographic range. Uranium-thorium dating, which measures the decay of radioactive isotopes in the thin mineral crusts that form over pigment, has pushed back the earliest confirmed dates for figurative cave art and has complicated the once-tidy narrative that painting originated in a single region and spread outward. Some markings in Spanish caves now appear to predate the arrival of anatomically modern humans in Europe, a finding that has prompted vigorous debate about whether Neanderthals, too, possessed the cognitive capacity for symbolic representation. Whatever the resolution of that debate, it is now clear that the impulse to mark cave walls with images was not a single, localized invention but something that emerged, perhaps independently, in multiple populations over a long span of time. The techniques employed by Paleolithic artists were more sophisticated than casual observers might assume. Pigments were typically derived from mineral sources: red and yellow ochres came from iron oxide deposits, while black was produced from manganese dioxide or charcoal. These raw materials were often ground into fine powder and mixed with binding agents such as animal fat, plant saps, or water to create a substance that could be applied with fingers, chewed twigs, or rudimentary brushes fashioned from hair or plant fiber. In several caves, archaeologists have found evidence that pigment was sometimes blown through hollow bones onto the wall, producing a spray effect used to create the negative-hand stencils that appear alongside more representational imagery. Artists also exploited the natural contours of the rock, using bulges and hollows to lend three-dimensionality to the flanks of a painted bison or the haunches of a horse. This deliberate integration of image and surface suggests a level of planning that went beyond spontaneous doodling; certain panels appear to have been composed with an awareness of how torchlight would flicker across the uneven stone, animating the figures for a viewer moving through the chamber. The purpose behind these images remains one of the most contested questions in archaeology, and the difficulty is compounded by the fact that no written testimony survives to clarify the artists' intentions. An early and long-influential hypothesis proposed that the paintings functioned as a form of hunting magic, under the assumption that depicting an animal might have been believed to grant power over it or to ensure success in an actual hunt. Yet this theory sits awkwardly with the archaeological record: the species most frequently painted, such as horses and bison, do not always correspond to the animals whose bones dominate nearby food refuse, which more often include reindeer. Other researchers have suggested that the images served a role in shamanistic ritual, perhaps created during altered states of consciousness induced by rhythmic drumming, sensory deprivation in the profound darkness of deep chambers, or other trance-inducing practices. Still others argue that the caves functioned as sites of communal gathering, where image-making reinforced group identity, transmitted knowledge across generations, or marked significant social or cosmological events. No single explanation has achieved consensus, and it is entirely possible that the paintings served different functions in different times and places, or even multiple overlapping functions within a single community. Regardless of the motivations behind their creation, these images offer modern researchers an invaluable, if fragmentary, window into the cognitive and social lives of early humans. The consistent recurrence of certain motifs, including particular animal species and abstract geometric signs, across sites separated by hundreds of kilometers implies some degree of shared visual vocabulary and perhaps even long-distance contact or a common cultural inheritance among otherwise dispersed groups. Moreover, the sheer technical accomplishment of the best-preserved paintings, with their confident lines, controlled shading, and sensitivity to animal anatomy and movement, indicates that the capacity for sophisticated artistic expression is not a recent development layered atop a more primitive human nature but rather an ability that has been present, in some form, for tens of thousands of years. As new sites are excavated and dating methods continue to be refined, the picture of when, where, and why humans began painting caves will likely keep shifting, but the fundamental significance of the achievement is unlikely to diminish.
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Reading Comprehension

Read the passage and answer the question.

According to paragraph 1, what has uranium-thorium dating contributed to the study of cave art?