Topic Development

Old Faithful, a famous geyser in Yellowstone National Park, erupts with remarkable predictability. Visitors from all over the world gather to watch the geyser shoot boiling water high into the air. [1] Early cameras required long exposure times to capture clear images of moving water. Many of these tourists wait patiently on the wooden boardwalk, cameras in hand, for the next eruption to begin.

Should the writer keep or delete Sentence 1?

[1]
__________________________________________________ Before 1977, scientists believed that all marine life ultimately depended on sunlight, which powers photosynthesis in surface waters. However, when the research submersible Alvin descended to the ocean floor near the Galápagos Rift, researchers discovered thriving ecosystems clustered around vents spewing mineral-rich water at temperatures up to 750°F. Rather than depending on solar energy, these communities relied on chemosynthetic bacteria, which convert toxic hydrogen sulfide into organic matter.

Which of the following choices best introduces the paragraph by establishing its main focus?

Passage

[1] During World War II, mathematician Joan Clarke played a pivotal role in the cryptanalysis effort at Bletchley Park, where she worked to decipher encrypted German naval communications. [2] Although initially hired as a clerk, her exceptional analytical skills quickly earned her a promotion to Hut 8, the team responsible for breaking the complex Enigma cipher. [3] Clarke's work was essential because <u>she helped the Allied forces with their shipping operations</u>. [4] Her colleagues frequently noted that her contributions went far beyond mere calculation; she introduced innovative methods that significantly reduced the time needed to decode critical messages.

Question

The writer wants to replace the underlined portion in sentence 3 with specific, concrete details that illustrate the tangible impact of Clarke's decryptions on Allied convoys. Which choice best accomplishes this goal?

Zhang Heng's Seismoscope

[1]
In 132 CE, during the Han Dynasty, the Chinese polymath Zhang Heng introduced an extraordinary invention to the imperial court: the Houfeng Didong Yi, widely regarded as the world's first seismoscope. To a court routinely threatened by devastating earthquakes, the device promised crucial advanced warning. It was a large, ornate bronze vessel, resembling a wine jar, with a diameter of nearly six feet. On its outer surface, eight dragons faced downward, each holding a bronze ball in its mouth. Directly beneath them sat eight bronze toads, their mouths open and facing upward to receive the balls.

[2]
The internal mechanism of the vessel was a closely guarded secret, but modern reconstructions suggest it relied on a central pendulum. When a tremor occurred, even one imperceptible to humans, the ground's movement would sway the pendulum. This motion triggered a series of internal levers, releasing the ball from the mouth of the dragon facing the direction of the earthquake's origin. The ball would drop into the open mouth of the toad below with a loud clang, alerting the court to both the occurrence and the approximate direction of the seismic activity.

[3]
Initially, imperial officials were skeptical of the device's utility, especially when a ball dropped one day without any visible tremor felt in the capital. However, days later, a messenger arrived to report that an earthquake had indeed occurred hundreds of miles away in the direction indicated by the empty dragon's mouth. Despite its success, the exact design of the seismoscope was lost to history when the Han Dynasty fell, leaving future generations to marvel at its sophistication through historical texts alone.

Suppose the writer's goal had been to write an essay that details the broad range of scientific, mathematical, and literary contributions made by Zhang Heng throughout his lifetime. Is the statement that this essay successfully achieves this goal true or false?

A Popping Success

[1]
In 1957, engineers Alfred Fielding and Marc Chavannes set out to create a textured, three-dimensional wallpaper. They attempted to laminate two plastic shower curtains together, sealing them with heat. However, the process trapped tiny pockets of air between the sheets. Although the wallpaper idea was a commercial failure, the inventors refused to abandon their creation.

[2]
They first attempted to market the bubbly material as greenhouse insulation. While it worked reasonably well, sales remained low. The true breakthrough came a few years later when Marc Chavannes realized the material’s potential for protecting fragile items during transport.

[3]
In 1960, they founded Sealed Air Corporation and branded their product as Bubble Wrap. Their first major client, IBM, used it to ship the delicate IBM 1401 computer. Today, Bubble Wrap is a staple of the shipping industry, protecting millions of packages worldwide.

Suppose the writer's goal had been to write an essay that highlights the history of Bubble Wrap, focusing on how a failed design for wallpaper became a successful packaging material. This goal was successfully met by the essay.

[1] In the twelfth century, polymath Al-Jazari pioneered advanced mechanical engineering, documenting his designs in the *Book of Knowledge of Ingenious Mechanical Devices*. [2] His work was not merely theoretical; rather, he prioritized constructing functional machines that automated everyday tasks and entertained the royal court. [3] To demonstrate the sophistication of his water-powered automata, he designed a musical boat containing robotic musicians that floated on a lake. [4] These elaborate creations laid the foundational principles of modern robotics and hydraulics.

The writer wants to revise the underlined portion of sentence 3 (shown below in brackets) to provide the most specific, concrete visual details that illustrate the mechanical complexity and entertainment value of the automaton:

'To demonstrate the sophistication of his water-powered automata, he [designed a musical boat containing robotic musicians that floated on a lake].'

Which choice best accomplishes this goal?

Passage

[1] In the mid-twentieth century, geologist Marie Tharp painstakingly plotted sonar soundings to draft the first comprehensive maps of the ocean floor. [2] Although her male colleagues initially dismissed her findings as "girl talk," Tharp's meticulous charts revealed a massive, continuous rift valley splitting the Mid-Atlantic Ridge. [3] This distinct geological feature provided the crucial physical mechanism needed to support the continental drift theory. [4] To solidify this revolutionary claim, researchers needed to present clear, observable proof of volcanic activity and seafloor spreading occurring along this underwater rift.

Question

The writer wants to add a sentence at the end of the passage (following Sentence 4) to support the claim that volcanic activity and seafloor spreading were actively occurring along the Mid-Atlantic Ridge's rift valley. Which of the following sentences would best provide the most specific and concrete visual evidence to support this claim?

The following sentences are from a draft of an essay about ancient Roman engineering. To ensure that the paragraph is organized logically and that each claim is supported by immediate, relevant evidence and details, in what order should the sentences be placed?

The following sentences are from a draft of an essay about seismologist Inge Lehmann. To ensure that the paragraph develops its claim logically, in what order should these sentences be arranged?

The following sentences are from a draft of an essay about geologist Marie Tharp. To ensure the paragraph logically builds its claim that scientific data supported Tharp's hypothesis of a seafloor rift valley, in what order should the sentences be arranged?

Josephine’s Invention

[1]
In the late nineteenth century, Josephine Cochrane, a wealthy socialite from Illinois, grew frustrated with a common household problem. Although she did not wash dishes herself, her servants frequently chipped her fine heirloom china while cleaning it. Determined to find a better solution, Cochrane resolved to build a machine that could wash dishes faster and more safely than human hands.

[2]
Working in a shed behind her home, Cochrane designed a machine that used high water pressure rather than scrubbers to clean. She measured the dishes first, constructing wire compartments tailored to fit plates, cups, and saucers. These compartments were placed inside a copper boiler, which rotated while hot, soapy water was sprayed from the bottom. Cochrane patented her invention in 1886, naming it the Cochrane Dishwasher.

[3]
Initially, Cochrane’s invention was not designed for the average home, which lacked the plumbing and hot water heaters necessary to run the machine. Instead, she found success selling her large-scale washers to hotels, restaurants, and hospitals, where efficiency and sanitation were paramount. Cochrane’s design laid the foundation for the modern household appliance that is now common in kitchens worldwide.

Suppose the writer’s goal had been to write an essay that describes the technical and mechanical difficulties Cochrane encountered while building her first prototype. Would this essay successfully fulfill that goal?

The following passage is about the history of Manhattan's street layout.

Manhattan's Grid

[1]
In the early nineteenth century, New York City was growing rapidly, yet its street layout was a chaotic jumble of narrow, winding pathways. To bring order to this expanding metropolis, the state legislature appointed a commission in 1807 to design a new street system. The resulting proposal, known as the Commissioners' Plan of 1811, introduced the iconic rectangular grid of streets and avenues that defines Manhattan today.

[2]
The planners prioritized practicality over aesthetic elegance. They rejected circular designs or diagonal boulevards, which were popular in European capitals, in favor of right-angled intersections. This layout maximized the utility of building lots and simplified the buying and selling of real estate. While some critics argued that the grid was monotonous, its efficiency facilitated the city's commercial explosion.

[3]
Today, the grid remains the structural backbone of Manhattan. It has proven remarkably adaptable, accommodating millions of residents, skyscrapers, and transit systems that the original planners could scarcely have imagined. Although Central Park was later carved out of the grid to provide green space, the basic rectangular network continues to shape the daily flow of life in the city.

Suppose the writer's goal had been to write an essay that traces the transition of New York City from a chaotic trading post to a global financial capital. Would this essay accomplish this goal?

During a winter trip to New York City in 1902, Mary Anderson observed a trolley driver struggle to see through a sleet-covered windshield. The driver had to repeatedly open his window, leaning out into the freezing air to wipe the glass by hand. Upon returning to Alabama, Anderson sketched her solution: a wooden lever inside the vehicle connected to a rubber blade on the outside. [X]

Resorting to the passage above, the writer wants to add a sentence at the indicated point [X] that emphasizes the immediate skepticism Anderson's invention faced despite its practical utility. Which choice best accomplishes this goal?

The following five sentences are taken from a draft of an essay about the decipherment of Bronze Age scripts. Arrange these sentences in the most logical sequence so that each claim is immediately followed by its supporting evidence or details.

Hydrothermal vents on the ocean floor host thriving communities of organisms in complete darkness. Because these communities exist deep underwater, they cannot rely on photosynthesis for survival. Instead, chemosynthetic bacteria convert toxic chemicals from the vents into nutrients, forming the base of the food web. A variety of unique species [underlined portion].

Given the context of the passage, the writer wants to revise the underlined portion to provide the most specific, concrete detail that supports the claim that these species rely on the chemical energy produced by the bacteria. Which of the following choices best accomplishes this goal?

[underlined portion] = "cluster around these vents"

[1] In the late 1920s, writer and anthropologist Zora Neale Hurston traveled throughout the American South to document African American oral traditions. [2] Hurston believed that folklore was not a static relic of the past but rather a dynamic, living art form that shaped community identity. [3] To capture the true vitality of these stories, she knew she had to record them in their natural settings rather than in academic isolation. [4] Her field research relied on immersive methods that allowed her to integrate fully into the daily lives of the people she studied.

The writer wants to revise Sentence 4 (reproduced above) to provide the most specific, concrete details that support the claim that Hurston integrated herself into the daily lives of the people she studied. Which choice best accomplishes this goal?

[1] In the 1840s, British botanist Anna Atkins recognized that traditional hand-drawn illustrations were inadequate for capturing the intricate, hair-like structures of British algae. [2] To address this limitation, she turned to the newly invented cyanotype process, which used light-sensitive chemicals to produce precise blue-and-white silhouettes of botanical specimens. [3] Atkins painstakingly placed wet algae directly onto treated paper and exposed it to sunlight, producing images that served as direct physical imprints of the plants. [4] Her resulting self-published work, British Algae: Cyanotype Impressions, is widely considered the first book illustrated with photographs.

The writer wants to add a sentence after Sentence 3 that provides the most specific, concrete visual detail demonstrating the precise botanical features captured by Atkins's cyanotypes. Which choice best accomplishes this goal?

[1] To protect themselves from predators, members of the glass frog family (Centrolenidae) rely on a unique form of camouflage known as translucency. [2] While many animals use solid colors to blend in with their environments, these frogs possess gelatinous, see-through skin on their limbs and undersides. [3] When perched on a leaf, the frog's body becomes less noticeable. [4] This effect, researchers have discovered, makes it difficult for hunting birds and wasps to detect the frogs under natural lighting conditions.

The writer wants to revise sentence 3 (reproduced below) to provide the most specific, concrete visual detail that illustrates how the frog's translucency functions as camouflage.

*When perched on a leaf, the frog's body becomes less noticeable.*

Which of the following versions of the sentence best achieves this goal?

The following sentences are from a draft of an essay about mathematician Gladys West. To ensure the paragraph logically builds its claim with supporting evidence, arrange the sentences in the most logical order.

London's Subterranean Pioneer

[1]
In the mid-nineteenth century, London faced unprecedented street congestion. The city’s population had exploded, and horse-drawn omnibuses, cabs, and carts choked the narrow thoroughfares, making daily commutes a grueling ordeal. In response, a visionary solicitor named Charles Pearson proposed an audacious solution: transporting passengers beneath the city streets. Despite widespread skepticism and fears that the tunnels would collapse or suffocate passengers, Pearson campaigned tirelessly for his idea, eventually securing the support of the City of London.

[2]
In 1860, construction began on the Metropolitan Railway using the 'cut-and-cover' method. Workers excavated a deep trench along existing roadways, built brick archways over the tracks, and then repaved the street above. This approach disrupted surface traffic enormously but allowed for the creation of the world's first underground passenger line. The locomotives utilized were steam-powered, specially designed to condense their own steam to keep the tunnels relatively clear of smoke, though passengers still complained of the coal-scented atmosphere.

[3]
When the railway opened on January 10, 1863, it was an immediate sensation, carrying over thirty thousand passengers on its very first day. The success of the Metropolitan Railway demonstrated the viability of subterranean transit, paving the way for the extensive network known today as the London Underground. Pearson's dream of relieving street traffic by utilizing the space beneath the city had transformed from a ridiculed fantasy into a template for modern urban transportation worldwide.

Suppose the writer's goal had been to write an essay that details the specific engineering challenges and building materials used in constructing the London Underground throughout the late nineteenth and early twentieth centuries. Is it true that the essay successfully accomplishes this goal?