All practice questions

The following passage is adapted from an essay on the history of marine bioluminescence research.

In the early twentieth century, the biological mechanism behind coastal luminescent displays remained one of marine biology's most enigmatic puzzles. While ancient naturalists had documented the cold light emitted by sea organisms, formal biochemical investigation did not gain momentum until American physiologist E. Newton Harvey turned his focus to *Vargula hilgendorfii*, a small benthic ostracod abundant along the Japanese coastline.

In 1917, Harvey successfully extracted crude luciferin—the substrate responsible for light emission—from dried ostracod specimens that had been gathered in Japan and shipped to his Princeton laboratory. Working with these desiccated samples, Harvey demonstrated that the substrate retained its reactive capacity even after prolonged storage. However, determining the precise environmental parameters necessary for the reaction required subsequent experimentation. In 1928, by systematically eliminating atmospheric gases from his reaction chambers, Harvey proved conclusively that molecular oxygen was an indispensable catalyst when luciferin combined with its complementary enzyme, luciferase.

While Harvey illuminated the chemical prerequisites of the light-producing reaction, the cellular architecture supporting this chemical system in living organisms remained unmapped. That structural foundation was unveiled in 1948, when Japanese biologist Yata Haneda published detailed histological examinations of *Vargula hilgendorfii*. Haneda discovered that the ostracod possessed specialized submandibular glands containing anatomically separated cellular chambers, which prevented luciferin and luciferase from mixing prior to expulsion into seawater.

Building upon both Harvey's chemical foundation and Haneda's anatomical insights, organic chemist Osamu Shimomura sought to determine the exact molecular structure of the substrate. Previous attempts had been hindered by the extreme instability of purified luciferin when exposed to ambient light and air. In 1953, by developing a specialized low-temperature extraction protocol using organic solvents, Shimomura achieved the first successful crystallization of pure ostracod luciferin, finally allowing scientists to map its atomic composition.

Based on the explicit details provided in the passage, place the following scientific discoveries and milestones in the exact chronological order in which they occurred.

Read the following passage:

"Before beginning her pioneering work in industrial toxicology in 1910, Dr. Alice Hamilton completed her medical degree at the University of Michigan in 1893. Following her graduation, she spent two years studying bacteriology in Germany. Upon returning to the United States in 1897, Hamilton accepted a professorship at the Woman's Medical School of Northwestern University and moved into Hull House in Chicago. Years later, after completing her landmark study on lead poisoning for the state of Illinois, she was appointed as the first female faculty member at Harvard University in 1919."

Based on the passage, arrange the following events in chronological order from earliest to latest.

Read the passage below and arrange the listed events in chronological order from earliest to latest based on the explicit statements in the text.

Passage:
In the summer of 2014, marine biologist Dr. Elena Rostova led a deep-sea expedition to the Mariana Trench. Before launching the remote submersible, the research team spent three weeks calibrating the high-pressure camera housing. Once the submersible reached a depth of 4,000 meters, it recorded the first clear footage of a giant bioluminescent siphonophore. Following this discovery, Dr. Rostova published her findings in the Oceanographic Journal of America in early 2016. Later that year, the International Marine Institute awarded the expedition team the Medal of Exploration Excellence.

In what sequence did these events occur?

Geothermal geologists analyzed fluid samples collected from 4 distinct wells (Well W, Well X, Well Y, and Well Z). Table 1 lists the measured reservoir temperature in degrees Celsius ($^\circ\text{C}$) and the dissolved silica ($SiO_2$) concentration in milligrams per liter ($\text{mg/L}$) for each well.

Figure 1 displays the fluid viscosity ($\eta$, in centipoise, $\text{cP}$) as a function of dissolved $SiO_2$ concentration at four different temperature curves:
- At $140^\circ\text{C}$: $\eta = 0.005 \times (\text{dissolved } SiO_2) + 0.10$
- At $170^\circ\text{C}$: $\eta = 0.003 \times (\text{dissolved } SiO_2) + 0.20$
- At $200^\circ\text{C}$: $\eta = 0.002 \times (\text{dissolved } SiO_2) + 0.40$
- At $230^\circ\text{C}$: $\eta = 0.001 \times (\text{dissolved } SiO_2) + 0.50$

Based on Table 1 and Figure 1, rank the geothermal wells in order from lowest fluid viscosity to highest fluid viscosity.

The following passage is adapted from an article on early atmospheric aviation.

On the morning of May 27, 1931, Swiss physicist Auguste Piccard and his assistant Paul Kipfer stepped inside a spherical, airtight aluminum gondola attached to a massive hydrogen-filled balloon named FNRS-1. Launching from Augsburg, Germany, their primary objective was to reach the stratosphere to measure cosmic rays.

Shortly after ascent, a critical mechanical failure occurred: a pressure valve malfunctioned, causing a sudden drop in cabin pressure. Working quickly in the cramped sphere, Kipfer sealed the leaking valve joint using a rudimentary compound of petroleum jelly and oakum fiber. Once the leak was secured, the balloon continued its climb into the upper atmosphere.

At 3:57 PM, the FNRS-1 reached a peak altitude of 15,781 meters (51,775 feet), making Piccard and Kipfer the first human beings to enter the stratosphere. However, a new crisis emerged within the cabin. The motorized mechanism designed to slowly rotate the gondola—intended to regulate internal temperature by turning the heat-reflecting silver side toward the Sun—failed completely. Suspended with the dark-painted side facing the Sun constantly, internal cabin temperatures soared past 106°F (41°C).

Desperately short of liquid oxygen and suffering from severe heat exhaustion, the two aeronauts spent several hours drifting across the Alps. Finally, as cold air aloft caused the hydrogen gas to contract, the balloon began a gradual descent. At 8:50 PM, the gondola touched down safely on the snowpacks of the Gurgler glacier near Obergurgl, Austria, concluding a historic seventeen-hour voyage.

Based on the passage, place the following explicitly stated events from Auguste Piccard's flight in the chronological order in which they occurred from first to last.

Read the following passage carefully:

Before Dr. Maya Lin embarked on her 2018 expedition to the Antarctic Peninsula to sample subglacial meltwater, she spent two years synthesizing satellite telemetry collected during the 2012 Polar Sentinel mission. Her interest in subglacial hydrology had actually been sparked years prior, when she read Dr. Alistair Vance’s 2004 seminal paper on sub-ice lakes while completing her undergraduate thesis in 2007. Upon arriving at McMurdo Station in early 2018, Lin discovered that her primary drill rig had suffered severe mechanical failure during transit—a setback reminiscent of her failed 2015 pilot study in Greenland, where extreme weather destroyed her temperature sensors. Rather than aborting the 2018 mission, Lin pivoted to deploying autonomous thermal probes, a technique she had perfected while consulting for a deep-sea geothermal project in 2016. By late 2019, after analyzing the data recovered by the thermal probes, Lin published her landmark study proving the existence of interconnected subglacial rivers.

Based on the passage, in what chronological order did the following events occur from earliest to latest?

Read the following passage carefully:

Architect Marcus Vance designed the new city library over a multi-year period. In 2012, he submitted his initial architectural blueprints to the city council for formal review. After receiving approval the following year in 2013, construction crews officially began laying the main foundation. Finally, in 2014, the building's signature glass dome was installed, marking the completion of the structural exterior.

Based on the explicit statements in the passage, arrange the following events in chronological order from earliest to latest.

Read the following passage carefully:

In June 1977, oceanographers aboard the research vessel Lulu prepared the submersible Alvin for a deep dive near the Galápagos Rift. Before the crew boarded the vessel, engineers conducted a thorough pressure-test of the hull at sunrise. Once Alvin was lowered into the Pacific waters, the pilot engaged the flood tanks to begin the two-hour descent to the ocean floor. Near the mid-point of the dive, the team activated the external halogen lights to navigate the pitch-black midwater zone. Finally, upon reaching the seabed, the scientists recorded water temperature anomalies that led directly to the discovery of hydrothermal vents.

Based on the passage, in what chronological order did these events occur during the expedition?

The following passage is adapted from an essay on the history of natural history and botanical illustration:

In June 1699, fifty-two-year-old German-born naturalist Maria Sibylla Merian took an unprecedented step for an independent woman of her era: she sold her estate in Amsterdam to self-fund a scientific expedition to South America. Accompanied by her youngest daughter, Dorothea, Merian boarded a ship bound for Paramaribo, the capital of Suriname. At the time, naturalists rarely observed insects in their wild habitats, relying instead on preserved, dried specimens shipped to European cabinets of curiosity. Merian, however, was determined to study living organisms directly, documenting their full life cycles and ecological relationships.

Upon arriving in Suriname later that summer, Merian began conducting intense field study in the dense rainforests surrounding Paramaribo. Over the course of nearly two years, she collected, bred, and painted dozens of native insect species alongside the host plants upon which they fed. Her work shattered contemporary assumptions regarding spontaneous generation by meticulously capturing the metamorphosis of caterpillars into moths and butterflies. However, in the summer of 1701, an unexpected illness—likely malaria—compelled Merian to prematurely terminate her field research and return to Europe to recover.

Back in Amsterdam, Merian spent three years preparing her field sketches and notes for publication. Refusing to rely on third-party publishers who might compromise the scientific fidelity of her copperplate engravings, she personally oversaw every aspect of production. In 1705, she issued her monumental work, *Metamorphosis Insectorum Surinamensium* (*The Metamorphosis of the Insects of Suriname*), financed entirely through a private subscription model she organized herself. The publication set a new standard for scientific illustration by depicting insects together with the specific plant species they inhabited.

Based on the passage, place the following biographical events involving Maria Sibylla Merian in the correct chronological order as they explicitly occurred.

The following passage is adapted from an essay on mid-twentieth-century oceanographic history:

In early 1977, an oceanographic research team launched an expedition to investigate thermal anomalies along the Galápagos Rift, an active seafloor spreading center in the eastern Pacific Ocean. Because deep-sea submersibles operated under strict battery limitations and brief dive windows, researchers relied on preliminary surveying tools before deploying crewed vessels. On February 15, the surface support ship towed the unmanned, camera-equipped sled known as ANGUS (Automated Nautical Geophysical Underwater System) just meters above the basaltic seabed. During this run, ANGUS recorded a localized temperature increase of $0.1^\circ\text{C}$ while simultaneously photographing clusters of giant white clam shells resting on the ocean floor.

Analyzed immediately by onboard geophysicists, the thermistor data and black-and-white photographs allowed the team to pinpoint the precise coordinates of the anomaly, which they designated as 'Clambake I.' Two days later, on February 17, geologists Jack Corliss and Tjeerd van Andel boarded the three-person submersible *Alvin* to execute Dive 713. Descending to a depth of roughly $2{}500\text{ meters}$, the pilots navigated directly toward the coordinates mapped by ANGUS. Upon reaching the rift valley floor, the observers witnessed clear, warm water shimmering as it emanated from narrow fractures in the volcanic basalt. This direct observation provided the first conclusive proof of active hydrothermal venting on the ocean floor.

Based on the explicit details provided in the passage, in what chronological order did the events of the Galápagos Rift expedition occur?

Environmental scientists investigated the bioremediation of crude oil-contaminated soil using a specialized bacterial consortium. Table 1 shows the measured soil moisture content and temperature at four distinct monitoring sites (Site 1, Site 2, Site 3, and Site 4).

Table 2 displays the hydrocarbon degradation rate by the bacterial consortium measured across various soil moisture contents and incubation temperatures in laboratory testing.

Based on Table 1 and Table 2, rank the four monitoring sites in order from the site with the HIGHEST estimated hydrocarbon degradation rate to the site with the LOWEST estimated hydrocarbon degradation rate.

A group of microbiologists measured the enzymatic reaction rate ($R$, in $\text{nmol/min}\cdot\text{mg}$) of a newly discovered halophilic bacterial strain across various salinity levels ($S$, in parts per thousand, ppt) at three fixed temperatures ($20^\circ\text{C}$, $30^\circ\text{C}$, and $40^\circ\text{C}$). The results are recorded in the table below.

Based on linear interpolation and extrapolation of the data trends, arrange the four estimated reaction rates described below in order from lowest to highest.

Read the passage below:

In November 1958, sound archivist Arthur Pendelton published his definitive catalog of early acoustic wax cylinder recordings. However, the path to this milestone was far from direct. Pendelton had first encountered the deteriorating cylinders in 1949 when a flood damaged the Royal Conservatory's basement, prompting him to transfer the collection into climate-controlled storage. Although he secured an initial preservation grant from the Heritage Foundation in 1951, technical hurdles delayed progress. Following two years of failed attempts to build a mechanical playback stylus, Pendelton successfully digitized the rarest cylinders in 1953 using a modified optical pick-up. Shortly after releasing his published catalog in 1958, Pendelton donated the restored digital archive to the National Library.

Based on the passage, arrange the following events in chronological order from earliest (first) to latest (last).

The following passage is adapted from an essay on twentieth-century marine biology:

In December 1952, fourteen years after the first identified coelacanth was preserved in South Africa, a second specimen was caught off the island of Anjouan in the Comoros archipelago. Captain Eric Hunt, a schooner trader who had distributed leaflets offering a reward for the fish, recognized the unusual fins and immediately preserved the specimen in formalin. Hunt then sent an urgent telegram to South African ichthyologist J. L. B. Smith in Grahamstown. Upon receiving the message, Smith recognized that the fish needed to be inspected before decomposition ruined its internal organs. He appealed directly to South African Prime Minister D. F. Malan, requesting an official military aircraft to bypass commercial flight delays. Prime Minister Malan authorized a Dakota military transport plane for the urgent mission. Smith boarded the aircraft, flew to Anjouan, and personally verified that the specimen was indeed a coelacanth. Finally, Smith loaded the preserved fish onto the plane and returned to South Africa to conduct a detailed scientific dissection.

Based on the explicit details provided in the passage, arrange the following events in the exact chronological sequence in which they occurred.

Read the passage below:

In 2021, dendrochronologist Dr. Soren Kjaer conducted an analysis of timber samples salvaged from the 1628 wreck of the warship Vasa. Prior to Kjaer's study, standard protocol dictated that waterlogged timber undergo chemical stabilization with polyethylene glycol—a method established in 1962 following the vessel's initial recovery from Stockholm Harbor. However, Kjaer discovered that acidic degradation had begun as early as 1988, long before conservationists noticed surface warping in 2005. To reconstruct the wood's structural degradation, Kjaer first digitized infrared scans taken during a 1995 survey. Only after cross-referencing those scans with wood-density measurements recorded in 2012 did his team establish that bacterial action had preceded chemical oxidation. Finally, in 2023, Kjaer published a revised preservation framework that abandoned the 1962 protocol.

Based on the passage, arrange the following events in chronological order from earliest (first) to latest (last).

Read the passage below:

In January 1911, Norwegian explorer Roald Amundsen established Framheim, a primary base camp located on the Ross Ice Shelf in Antarctica. During February and March, the expedition members focused their efforts on laying supply depots at key latitudes along their designated route to store essential provisions. After wintering at Framheim, five men equipped with four sledges pulled by fifty-two dogs officially began their final journey toward the pole on October 19, 1911. Traversing treacherous glaciers and ice fields, the team successfully arrived at the South Pole on December 14, 1911, where they planted the Norwegian flag.

Based on the explicit details provided in the passage, place the following events from Amundsen's expedition in chronological order from earliest to latest.

Read the passage below:

In 2022, conservator Dr. Maya Lin undertook the restoration of the 14th-century Tapestry of Saints at the Florence Institute of Art. Before applying any chemical cleansers to the fragile silk threads in November of that year, she reviewed the logbooks from the tapestry's previous restoration in 1954. Those archival notes revealed that in 1938—sixteen years before the 1954 restoration team consolidated the backing canvas—the tapestry had been emergency-treated with an acoustic ultrasonic bath by museum curator Pietro Bernini following a river flood. However, Lin's micro-chemical analysis in early 2023 indicated that the ultrasonic bath had actually occurred after Bernini documented the initial mold outbreak in the winter of 1937, though prior to the tapestry's relocation to the dry vault in autumn 1939. Lin finalized her comprehensive structural report in mid-2024, citing Bernini's 1937 mold documentation as the true turning point in the artifact's degradation history.

Based on the passage, in what chronological order did the events surrounding the tapestry occur, from earliest to latest?

Read the following passage adapted from an essay on historical archaeology:

In July 1799, during Napoleon Bonaparte's military campaign in Egypt, French soldiers under the command of engineering officer Captain Pierre-François Bouchard were tasked with rebuilding Fort Julien, an Ottoman fortification near the port city of Rashid (Rosetta). While clearing rubble from a ruined wall, soldiers unearthed a large, dark slab of granodiorite inscribed with three distinct scripts: Ancient Greek, Demotic, and Egyptian hieroglyphs. Recognizing its potential historic value, Captain Bouchard immediately informed French scholars stationed in Cairo and arranged for the artifact to be transported to the Institut d'Égypte.

Following the initial examination by scholars in Cairo, General Jacques-François Menou, who assumed command of the French expeditionary forces, claimed personal possession of the stone in late 1799 and relocated it to his private residence in Alexandria for safekeeping. However, the military situation shifted dramatically in August 1801 when British forces launched an offensive against French positions in Alexandria. Following the surrender of the French garrison, intense negotiations took place over the fate of collected Egyptian antiquities. Under the terms of the Capitulation of Alexandria signed in September 1801, the French army relinquished the Rosetta Stone to British military authorities.

In early 1802, the artifact was loaded onto the captured frigate HMS Égyptienne under the supervision of Colonel Tomkyns Hilgrove Turner. The ship set sail across the Mediterranean and Atlantic, arriving at the naval port of Portsmouth, England, in February 1802. Shortly thereafter, the stone was presented to the Society of Antiquaries of London before being permanently transferred to the British Museum later that year.

Based on the explicit details provided in the passage, place the following historical events in the correct chronological order from earliest to latest.

A student sets up an apparatus using a reaction flask and a gas syringe to measure the volume of oxygen gas evolved during the chemical decomposition of hydrogen peroxide ($H_2O_2$) catalyzed by manganese dioxide ($MnO_2$). Based on standard laboratory procedures, place the following steps of the experimental process in the correct chronological order from first to last.

Read the following passage adapted from an essay on mid-twentieth-century particle physics:

In December 1956, physicist Chien-Shiung Wu conducted a landmark experiment at the National Bureau of Standards to test the conservation of parity. To prepare the sample, Wu first cooled cobalt-60 atoms down to near absolute zero using liquid helium and magnetic demagnetization. Next, she applied a strong magnetic field to orient the spinning cobalt nuclei in a uniform direction. Once the alignment was successfully established, Wu monitored the emission of beta particles as the cobalt-60 underwent radioactive decay. She observed that significantly more electrons were emitted in the direction opposite to the spin of the nuclei. Finally, Wu compared these gathered observations with theoretical predictions to definitively demonstrate that parity was violated in weak nuclear interactions.

Based on the explicit details provided in the passage, in what chronological sequence did Chien-Shiung Wu perform the steps of her experiment from first to last?