Tüm alıştırma soruları

Read the sentence below and answer the question that follows.

The lead linguist emphasized that while certain ancient dialects are highly susceptible for language shift over generations, others remain surprisingly resilient.

Which of the following choices correctly replaces the underlined phrase to form a grammatically and idiomatically correct sentence?

A team of atmospheric chemists investigated the photochemical formation of secondary organic aerosols (SOAs) in a $5\text{ m}^3$ Teflon smog chamber. Across four distinct experimental runs, researchers introduced constant initial concentrations of $\alpha$-pinene ($100\text{ ppb}$) and ozone ($200\text{ ppb}$) into the chamber alongside ammonium sulfate seed aerosols ($15\ \mu\text{g/m}^3$). Chamber temperature was maintained at $298\text{ K}$ and relative humidity at $50\%$. The ultraviolet (UV) light irradiance was set to a different value for each run ($0\text{ W/m}^2$, $25\text{ W/m}^2$, $50\text{ W/m}^2$, or $100\text{ W/m}^2$). After 4 hours of continuous irradiation, the researchers measured the final total SOA mass concentration ($\mu\text{g/m}^3$) produced in the chamber.

Match each experimental component to its correct variable classification.

In $\triangle ABC$, the length of side $a$ (opposite angle $A$) is $9$ inches, the length of side $b$ (opposite angle $B$) is $12$ inches, and the measure of angle $B$ is $45^\circ$. What is the exact value of $\sin A$?

A circular stage turntable has a radius of $9$ meters. A wedge-shaped performance zone on the turntable is formed by a sector with a central angle measuring $100^\circ$. A safety border is installed along the entire boundary of this performance zone, which consists of its curved arc and both straight radius edges. What is the total length, in meters, of the safety border?

Read the passage below. Which form of the verb 'lay' correctly completes the blank while maintaining consistent verb tense throughout the text?

Read the sentence below:

The lead curator noted that the board of trustees was surprisingly receptive for the controversial proposal to loan the rare manuscripts to international museums.

Which of the following options best replaces the underlined portion to make the sentence idiomatically correct?

A student performed an experiment to study the catalytic decomposition of hydrogen peroxide ($H_2O_2$). In 5 separate trials, the student added $5\text{ mL}$ of a ferric nitrate ($Fe(NO_3)_3$) solution of varying concentrations ($0.1\text{ M}$, $0.2\text{ M}$, $0.3\text{ M}$, $0.4\text{ M}$, and $0.5\text{ M}$) to $50\text{ mL}$ of $3\%\text{ }H_2O_2$ solution in a sealed reaction flask connected to a gas syringe. The initial temperature of all solutions was maintained at $22^\circ\text{C}$. For each trial, the volume of oxygen gas ($O_2$) produced in the first $30\text{ seconds}$ was recorded to determine the initial reaction rate.

Based on the experimental procedure described, which of the following was the independent variable in the student's experiment?

Aerospace engineers conducted a series of wind tunnel trials to evaluate passive boundary layer control on a swept-wing model using micro-vortex generators (VGs). In Experiment 1, the engineers intentionally varied the VG orientation angle relative to the freestream flow ($\theta$) across five trials while maintaining a constant freestream velocity ($v = 45\text{ m/s}$), wing angle of attack ($\alpha = 12^\circ$), and ambient temperature ($T = 20^\circ\text{C}$). For each trial, they recorded the normalized chordwise position of boundary layer separation ($x_s/c$). Their data are shown in the table below:

Based on Experiment 1, which of the following correctly identifies the independent variable, the dependent variable, and one controlled variable?

In the damp temperate rainforests of the Pacific Northwest, certain species of fungi emit a soft, greenish glow at night. These bioluminescent mushrooms light up brightly during nighttime hours, illuminating the dark forest floor to attract spore-dispersing insects.

Which choice produces the most concise and grammatically correct sentence by eliminating redundancy in the underlined portion?

Read the sentence below and answer the question that follows.

During their annual migration across the desert region, desert tortoises are remarkably attuned with subtle shifts in atmospheric pressure, allowing them to seek shelter hours before a flash flood begins.

Which of the following alternatives to the underlined portion is idiomatically correct in standard written English?

If $k$ and $m$ are integers such that $|k - 3| = 8$ and $|m + 2| = 5$, where $k < 0$ and $m < 0$, what is the distance on the number line between $k$ and $m$?

A public library is organizing its catalog of physical books. Currently, $\frac{3}{8}$ of the books in the collection are categorized as fiction. Of the remaining books, $40\%$ are non-fiction, while the rest are divided between children's literature and reference volumes in a ratio of $3:2$, respectively. If there are exactly $450$ reference volumes in the library, what is the total number of physical books in the collection?

A park planner is designing a triangular walking trail connecting three landmarks: a fountain at point $F$, a gazebo at point $G$, and a bridge at point $B$. The distance from the fountain to the gazebo is $800$ meters, and the distance from the gazebo to the bridge is $1{}500$ meters. If the angle formed at the gazebo ($\angle FGB$) measures $60^\circ$, what is the direct distance, in meters, from the fountain at point $F$ to the bridge at point $B$?

Read the passage and answer the question that follows.

In 1910, polar researcher Alfred Wegener observed that the coastlines of South America and Africa fitted together like puzzle pieces. Intrigued by this alignment, he began gathering fossil evidence from both continents, which strengthens his radical hypothesis of continental drift before he formally presented his theory in 1912.

Which of the following alternatives to the underlined portion would be most grammatically acceptable in the context of the passage?

The tip of a pendulum swings through a central angle measuring $\frac{\pi}{3}$ radians, tracing an arc length of $4\pi$ centimeters. What is the area, in square centimeters, of the sector swept out by the pendulum?

Scientists studying ice core samples from Greenland analyze trapped air bubbles to reconstruct Earth's atmospheric history. Each annual sample provides a year-by-year record of greenhouse gas concentrations over past millennia.

Which choice best eliminates the redundancy in the underlined portion of the sentence?

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.

An environmental science team investigated the effects of soil moisture on soil microbial respiration rates. In five experimental plots, they adjusted the soil volumetric water content to values ranging from $10\%$ to $50\%$. Throughout all trials, they kept the soil temperature constant at $22^\circ\text{C}$ and maintained a uniform soil bulk density. At the end of 48 hours, they measured the total carbon dioxide ($CO_2$) efflux from each plot.

Match each experimental component listed on the left with its correct variable classification on the right.

After analyzing the structural integrity of the ancient stone bridge, the civil engineer recommended using dense, weather-resistant mortar, and she presented her findings to the preservation board.

Which choice best completes the sentence according to the conventions of standard written English?

A team of plant physiologists investigated the effect of a chemical surfactant (Surfactant X) on the water retention capacity of corn seedlings (*Zea mays*) during a simulated drought.

Four experimental groups of 20 corn seedlings each were grown in identical pots containing 500 g of soil:
- Group 1 was watered with 100 mL of pure distilled water.
- Group 2 was watered with 100 mL of a 0.1% Surfactant X aqueous solution.
- Group 3 was watered with 100 mL of a 0.5% Surfactant X aqueous solution.
- Group 4 was watered with 100 mL of a 1.0% Surfactant X aqueous solution.

All groups were maintained in the same environmental chamber at $25^\circ\text{C}$ with 14 hours of light daily. After 14 days, the average change in seedling biomass was recorded.

Which group served as the control group in this experiment, and what baseline condition did it establish?