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In 1948, graduate student Bernard Silver overheard a supermarket executive asking a dean to develop a system to automatically capture product information at checkout. Silver mentioned this to his classmate Norman Joseph Woodland, who became obsessed with the problem. Woodland's first idea was to use patterns of ink that would glow under ultraviolet light, but the ink faded too quickly. Seeking a better solution, Woodland retreated to his grandfather’s apartment in Miami Beach, which was a popular tourist destination at the time. One day, while sitting on the sand, he let his fingers trail through it, leaving four parallel lines. By extending Morse code dots and dashes vertically, he realized he could create thick and thin lines that a scanner could read.

The writer is considering deleting the underlined portion from the preceding sentence. Should the writer make this deletion?

Paragraph 1

In the early nineteenth century, the proposal to build a 363-mile canal connecting the Hudson River to Lake Erie was widely mocked as an impossibility. Critics dubbed the project "Clinton's Folly," mocking New York Governor DeWitt Clinton's ambitious plan to cut through dense forests, swampy wilderness, and solid rock. Skeptics argued that the young nation lacked the engineering expertise and financial resources to complete such a monumental undertaking.

Paragraph 2

[1] _________ The canal reduced shipping costs by up to ninety percent and turned New York City into the nation's premier commercial port. Towns along the canal route grew into bustling cities almost overnight. The success of the project sparked a nationwide canal-building boom, proving that the daring engineering feat was not a folly at all, but a vital artery for a growing nation.

Which choice provides the most effective transition from the preceding paragraph to the paragraph that follows?

In response to the growing demand for sustainable architecture, modern builders are turning to an ancient material; rammed earth, which provides natural insulation and structural durability.

Which choice most effectively punctuates the underlined portion of the sentence?

The writer is considering deleting the following sentence from the passage:

'Monarch butterflies lay their eggs on milkweed plants because they are the only food source for the caterpillars.'

If the passage focuses on the migratory patterns of monarch butterflies, should the writer make this deletion?

Read the passage and answer the question that follows.

The thorny devil, a lizard native to the Australian outback, can absorb water through its skin using a network of microscopic grooves between its scales. Additionally, this moisture is transported directly to the lizard's mouth by capillary action, allowing the creature to drink simply by standing on damp sand.

Which choice provides the most logical transition from the first sentence to the second sentence?

Although the scientists wanted to present their findings at the annual conference, they had to postpone the scheduled presentation until a later date due to incomplete data.

Which choice best replaces the underlined portion of the sentence?

Launched by NASA in 1977, the Voyager 1 spacecraft was designed to study the outer solar system. A copper phonograph record, which contains sounds and images selected to portray the diversity of life on Earth, is carried by the probe as it travels into interstellar space. This record is expected to last for billions of years, potentially serving as a message to extraterrestrial civilizations.

Which choice is the correct punctuation for the underlined portion of the passage?

The following is an excerpt from a passage about the history of climate science.

In 1856, Eunice Foote, an American scientist and women's rights campaigner, conducted a series of simple experiments that would help shape modern climate science. Using two glass cylinders, a thermometer, and an air pump, Foote compared the heating effects of solar radiation on different gases. She discovered that a cylinder filled with moist air and carbon dioxide became significantly warmer than one filled with common air, and that it took much longer to cool down.

[1] __________________________________________________ Her paper, 'Circumstances affecting the Heat of the Sun's Rays,' was presented at the annual meeting of the American Association for the Advancement of Science. However, because women were not permitted to speak at the conference, the paper was read aloud by Joseph Henry, the secretary of the Smithsonian Institution. Despite the significance of her findings, Foote's contribution to climate science went largely unnoticed for more than a century, with credit for demonstrating the greenhouse effect typically assigned to John Tyndall, who published a more detailed study three years later.

Which of the following sentences, if inserted at the beginning of the second paragraph (at [1]), would provide the most effective and grammatically correct introduction to that paragraph?

The following paragraph is from an essay about the history of technology.

[1] In 1948, Bernard Silver, a graduate student at Drexel Institute of Technology, overheard a supermarket executive asking a dean to develop a system to automatically capture product information at checkout. [2] Silver mentioned this challenge to his friend Norman Joseph Woodland, who became obsessed with the problem. [3] Woodland's initial idea was to use ink that glowed under ultraviolet light. [4] He then realized that a pattern of thin and thick lines, inspired by Morse code, could represent numbers.

The writer wants to add the following sentence to the paragraph:

"This ultraviolet ink, however, proved to be both unstable and expensive, forcing them to abandon the concept."

To make the paragraph most logical, where should this sentence be placed?

In the late nineteenth century, sound was first captured on delicate wax cylinders and shellac discs. Over time, these historical recordings have degraded, making them too fragile to play with a traditional needle. To preserve these audio treasures, scientists developed the IRENE system, which uses high-resolution digital imaging to scan the physical grooves of a record. By converting these visual scans into digital sound files, researchers can reconstruct audio from damaged media without physical contact.

Which choice provides the most logical and effective concluding sentence for the paragraph?

The writer wants to organize the sentences below to logically trace the cause-and-effect sequence of the trophic cascade in Yellowstone National Park following the reintroduction of wolves. Arrange the sentences in the most logical order.

During the excavation, the team uncovered a collection of clay tablets. Currently, these ancient artifacts are now stored in the university archives.

Which of the following is the best replacement for the underlined portion of the sentence?

Many archival institutions prioritize the preservation of ancient manuscripts. Because these historic documents are fragile and prone to deterioration, the preservationists handled the folios with extreme care, mindful of the delicate, easily damaged nature of the pages, which could easily break.

Which of the following choices best replaces the underlined portion of the passage?

Passage:

Monarch butterflies migrate thousands of miles south to Mexico every autumn. [2] <underline>Consequently</underline>, they do not possess a map or GPS; they must rely on environmental cues like temperature and daylight to navigate the long journey.

Which choice most effectively transitions from the first sentence to the second sentence?

The self-taught paleontologist Mary Anning patrolled the crumbling cliffs of Lyme Regis to search for prehistoric remains. Along the shore, she discovered the first correctly identified ichthyosaur skeleton. This remarkable fossil, which challenged established scientific views about the history of the Earth, paved the way for modern paleontology.

Which choice best punctuates the underlined portion of the sentence?

Modern conservationists use multi-spectral imaging to analyze ancient manuscripts, revealing text that has, over a long duration of time, become faded and worn down so that it cannot be seen.

Given the context of the sentence, which choice is the most concise and grammatically correct option for the underlined portion?

The following paragraph contains numbered sentences.

[1] In 1998, a medieval prayer book known as the Archimedes Palimpsest was purchased at auction, opening a window into lost ancient Greek mathematics. [2] Centuries earlier, in the thirteenth century, scribes had scraped away the original text of several treatises by Archimedes to reuse the valuable parchment for religious texts. [3] Modern conservationists, however, faced the daunting task of reading the erased, underlying writing without damaging the fragile leaves. [4] By illuminating the parchment under different wavelengths of light, scientists captured a series of high-resolution digital photographs. [5] Computer algorithms then processed these digital images, enhancing the contrast between the two overlapping layers of writing.

The writer is considering adding the following sentence to the paragraph:

'This technique, known as multispectral imaging, allowed them to document the erased text hidden beneath the medieval ink.'

To make the paragraph flow in the most logical order, where should the writer place this sentence?

The museum curator carefully restored the ancient vase. She worked in a manner that was slow and cautious to avoid damaging the fragile clay.

Which choice is the most concise and grammatically correct replacement for the underlined portion?

The following paragraphs are from a draft of an essay about the discovery of pulsars.

[1]
In the summer of 1967, Jocelyn Bell Burnell, a postgraduate student at Cambridge University, was analyzing miles of paper chart recordings from a newly constructed radio telescope. The telescope had been designed to study quasars, but Bell Burnell was looking for anything unusual in the massive amounts of data generated.

[2]
To investigate further, she used a high-speed recorder that could capture detail on a much shorter time scale. This faster recording revealed that the signals were actually incredibly regular pulses, occurring every 1.33 seconds.

[3]
Initially, some team members wondered if the signals were artificial transmissions from an extraterrestrial civilization, jokingly naming the source "LGM-1" for "Little Green Men." However, when Bell Burnell located a second, similarly pulsating source in a completely different part of the sky, it became clear that this was a natural, albeit entirely new, astronomical phenomenon: a pulsar.

[4]
While scanning the charts, she noticed a strange "scruff" of signals that did not look like the random interference typical of radio noise. The mysterious signals recurred at the exact same location in the sky, suggesting they originated from deep space rather than a terrestrial transmitter.

For the sake of the logic and cohesion of this essay, where should Paragraph 4 be placed?

The following paragraphs are from an essay about the history of standard time zones. Arrange the paragraphs in the most logical order to create a cohesive passage.