Knowledge of Language

By analyzing ice cores drilled from polar ice sheets, climatologists can reconstruct past atmospheric conditions. Each annual layer of ice, which is deposited on a yearly basis, contains trapped air bubbles that preserve ancient greenhouse gas levels.

Which of the following options is the most effective and concise choice for the underlined portion of the sentence?

In 132 CE, the Chinese inventor Zhang Heng introduced the world's first seismoscope, a device designed to register earthquakes from afar. The bronze vessel featured eight dragons holding bronze balls in their mouths, ready to release them into the open mouths of waiting frogs below. When an earthquake occurred, the internal pendulum would swing and tell a dragon to drop a ball, indicating the direction of the seismic activity. Which choice best maintains the established tone of the passage?

Read the passage below about marine conservation. Choose the word that most precisely and clearly fits the blank to maintain the formal, academic register of the passage.

Because geodesic domes are constructed from a network of triangles, they distribute stress evenly throughout the structure, which is why they can support heavy loads and weights.

Which choice is the most effective and concise revision of the underlined portion of the sentence?

When oceanographers first discovered hydrothermal vents in 1977, they were astounded by the thriving ecosystems surrounding these volcanic fissures. Located miles below the ocean surface, where sunlight cannot penetrate, these vents host unique organisms that rely on chemosynthesis rather than photosynthesis. To study these deep-sea communities, researchers must deploy sophisticated submersibles capable of withstanding the immense pressure of the abyss. This advanced equipment allows scientists to gather heaps of data about how life persists in such extreme environments.

Which choice best maintains the established style and tone of the passage?

Each autumn, millions of monarch butterflies undertake a grueling multi-generational migration from North America to the oyamel fir forests of central Mexico. To survive this arduous journey, these delicate insects rely on thermal updrafts to chill out and cruise over long distances. Researchers studying this phenomenon have noted that the butterflies' navigation systems are remarkably precise, allowing them to return to the exact same groves year after year.

Which choice best maintains the established tone of the passage?

The committee members debated the proposal for hours. Ultimately, they failed to reach a consensus of opinion that they all agreed on.

Which of the following choices most effectively and concisely replaces the underlined portion of the passage?

The following passage is adapted from an article about agricultural history.

In the early twentieth century, botanist George Washington Carver recognized that intensive cotton farming was depleting the soil of vital nutrients. To address this issue, Carver advocated for crop rotation, urging farmers to plant nitrogen-fixing crops like peanuts and sweet potatoes. This practice not only replenished the soil but also provided farmers with a bunch of alternative sources of income. Carver's research eventually transformed Southern agriculture by promoting sustainable, diversified farming techniques.

Which of the following choices best replaces the bolded phrase a bunch of to maintain the formal, academic tone of the passage?

Read the passage below. Which word most precisely and clearly completes the sentence to maintain the formal, academic register of the passage?

Recent studies in forest ecology demonstrate that peatlands play a vital role in carbon sequestration, storing more carbon than all other vegetation types combined. When these wetlands are drained for agriculture, they release vast quantities of greenhouse gases. To prevent this degradation, conservationists are working to restore natural water levels, which is a super awesome way to mitigate global climate change.

Which choice best maintains the style and tone established in the passage?

Originally built in the nineteenth century, the lighthouse has guided ships through the treacherous strait for generations. Currently at the present time, automated beacons have replaced the keepers, they no longer need to maintain the light manually.

Which choice best replaces the underlined portion to eliminate redundancy and maintain grammatical correctness?

The following passage is adapted from an article about animal migration:

Monarch butterflies are famous for their annual migration, traveling thousands of miles from North America to central Mexico. While individual butterflies are relatively fragile, their collective journey is a formidable demonstration of biological endurance. Scientists study this migration to understand how these insects navigate across such vast distances.

Which option most precisely and clearly fits the underlined word to maintain the formal tone of the passage?

Beneath the forest floor, vast networks of fungal mycelium connect the roots of individual trees. Through these underground channels, trees share nutrients with one another, cooperatively dividing them among themselves to support the health of the entire forest.

Which of the following choices, if substituted for the underlined portion, makes the sentence most concise and grammatically correct?

In 2005, researchers successfully germinated a 2,000-year-old Judean date palm seed recovered from the ancient fortress of Masada. This remarkable botanical achievement has provided scientists with a rare window into the agricultural practices of antiquity. By cultivating this ancient specimen, researchers have embarked on a quest to analyze its genetic profile and gather heaps of data regarding its distinct physiological traits.

Which choice best maintains the tone established in the passage?

A scientist is writing a report on acoustic levitation. Review the short excerpt below, and determine which of the words—'hold', 'clutch', 'suspend', or 'snatch'—most precisely and clearly fits the blank to maintain the formal register of the writing?

Sourdough bread relies on a wild yeast starter, which is a symbiotic culture of yeast and bacteria. Because this starter must be fed water and flour on a regular basis at scheduled intervals, bakers often treat it like a household pet.

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

Discovered in 1799 by French soldiers in Egypt, the Rosetta Stone provided the key to deciphering Egyptian hieroglyphs. The stone features a decree written in three different scripts: hieroglyphic, Demotic, and Ancient Greek. Because Greek was widely understood at the time, scholars could use it to translate the other two scripts. For decades, researchers went all out and did everything they could to unlock the mysterious symbols carved into the dark granodiorite. Finally, in 1822, French scholar Jean-François Champollion announced the complete translation, opening a window into ancient Egyptian history.

Which of the following choices to replace the underlined portion best maintains the formal, academic tone of the passage?

While studying the ruins of Pompeii, archaeologists discovered murals preserved in remarkable detail. The reason why the murals survived is because the volcanic ash sealed them from oxygen.

Which of the following options best replaces the underlined portion of the sentence?

In 1766, Jeanne Baret embarked on a global voyage of discovery disguised as a male assistant to the expedition’s botanist. Over the next several years, she gathered thousands of plant specimens from diverse ecosystems. Her contributions were crucial to the expedition's success, yet her true identity was eventually uncovered during the journey. Despite the challenges she faced, her botanical discoveries helped broaden our understanding of global biodiversity.

Which choice most precisely and clearly fits the context of the sentence?

The following passage is adapted from a historical account of marine biology. Read the passage and write a single, precise word in the blank that best fits the formal, academic tone of the context.