YDT Paragraf Tamamlama dersi, Paragraf tamamlama konusundan 103 özgün örnek soru.
Önce kendin çöz, sonra “Cevabı göster” ile kontrol et; adım adım çözüm her sorunun kendi sayfasında.
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Bioluminescence is widely distributed across marine life, but it also occurs in certain terrestrial organisms. The most familiar example on land is the common firefly. Male fireflies emit rhythmic flashes of greenish-yellow chemical light as they fly across summer meadows. ---- Females resting in the grass respond with precise reciprocal flashes, guiding the males to their exact location.
A)Certain deep-sea jellyfish emit blue flashes when touched by predators.
B)These luminous pulses serve as an intricate visual courtship dialogue.
C)Firefly larvae are carnivorous and feed predominantly on garden snails and slugs.
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In cognitive psychology, the "confirmation bias" describes the human tendency to seek out, interpret, and recall information in ways that reinforce preexisting beliefs. When presented with contradictory evidence, individuals frequently dismiss it or rationalize it away. ---- As an unfortunate result, political polarization deepens and echo chambers proliferate on digital platforms.
A)Double-blind medical studies were designed to counteract researcher subjectivity.
B)Meanwhile, they eagerly embrace even flimsy assertions that align with their preconceived worldview.
C)Memory recall is an active reconstructive process rather than a flawless video recording.
D)Analytical reasoning skills can be substantially cultivated through rigorous chess training.
E)Social media algorithms were originally created to maximize digital advertising revenues.
Cevabı göster
Doğru cevap: B) Meanwhile, they eagerly embrace even flimsy assertions that align with their preconceived worldview.
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The Dead Sea, located in the Jordan Rift Valley, is one of the saltiest water bodies on the planet. Its hypersaline water has a salt concentration exceeding thirty percent, nearly ten times saltier than the ocean. ---- As a result, no fish, aquatic plants, or crustaceans can survive in its waters, which explains how the sea earned its grim name.
A)Tourists flock to the Dead Sea to float effortlessly on its buoyant surface and apply mineral-rich mud.
B)This extreme osmotic pressure makes it virtually uninhabitable for almost all macroscopic organisms.
C)Water diversion from the Jordan River has caused the Dead Sea's water level to recede alarmingly.
D)Potash and bromine extracted from the sea are important industrial chemical exports for Jordan and Israel.
E)The lowest dry point on Earth's continental surface is situated along the shores of the Dead Sea.
Cevabı göster
Doğru cevap: B) This extreme osmotic pressure makes it virtually uninhabitable for almost all macroscopic organisms.
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Desalination technology has become a vital lifeline for arid coastal countries lacking freshwater rivers or aquifers. Most modern desalination plants utilize reverse osmosis, forcing pressurized seawater through semipermeable membranes that trap salts. ---- Disposal of this hyperconcentrated effluent back into coastal waters can deplete dissolved oxygen and harm fragile seafloor communities.
A)Solar-powered desalination facilities offer an eco-friendly path to sustainable drinking water in deserts.
B)However, this energy-intensive filtration leaves behind a toxic byproduct: massive volumes of dense brine.
C)Freshwater demand in agriculture accounts for more than seventy percent of global consumption.
D)Traditional thermal distillation requires boiling large amounts of seawater using fossil fuels.
E)Many island nations rely on rainwater harvesting cisterns to supplement municipal tap water.
Cevabı göster
Doğru cevap: B) However, this energy-intensive filtration leaves behind a toxic byproduct: massive volumes of dense brine.
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The domestication of the horse around 3500 BCE fundamentally reshaped human history. Before horses were harnessed, human mobility and cargo transport were restricted to foot travel or slow pack oxen. ---- Suddenly, communication across vast distances accelerated, nomadic pastoralism expanded, and mounted warfare transformed military strategy across Eurasia.
A)Wild horses were originally hunted for meat by Paleolithic hunter-gatherer bands.
B)The horse provided unprecedented speed, physical endurance, and logistical range.
C)Chariots were introduced to ancient Egyptian warfare following the Hyksos invasion.
D)Selective breeding has produced hundreds of specialized horse breeds suited for varied tasks.
E)Stirrups were invented in ancient China to provide riders with greater stability in battle.
Cevabı göster
Doğru cevap: B) The horse provided unprecedented speed, physical endurance, and logistical range.
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The Rosetta Stone, discovered by French soldiers in Egypt in 1799, provided the definitive key to deciphering ancient Egyptian hieroglyphs. The carved granodiorite stele contained a royal decree inscribed in three distinct scripts: hieroglyphic, Demotic, and ancient Greek. ---- By comparing the familiar Greek text with the enigmatic symbols, scholars like Jean-François Champollion finally cracked the code of hieroglyphs in 1822.
A)Hieroglyphic inscriptions were primarily reserved for sacred temple monuments and royal tombs.
B)Because Greek was well understood by European linguists, it served as an invaluable translation bridge.
C)Napoleon's expedition to Egypt was primarily intended to disrupt British overland trade routes to India.
D)Papyrus scrolls preserved in dry desert sands have yielded thousands of lost classical literary works.
E)The British Museum has housed the Rosetta Stone in its permanent collection since 1802.
Cevabı göster
Doğru cevap: B) Because Greek was well understood by European linguists, it served as an invaluable translation bridge.
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For over a millennium, alchemy was pursued across the Islamic world, China, and medieval Europe. Alchemists sought to transmute base metals like lead into precious gold and discover the elixir of immortality. Although their philosophical aims were mystical and unscientific, their practical laboratory methods were groundbreaking. ---- In this sense, alchemy laid the empirical foundations for modern chemistry.
A)Sir Isaac Newton spent extensive hours studying esoteric alchemical treatises in his study.
B)They pioneered distillation, discovered mineral acids, and invented crucial laboratory glassware.
C)Medieval guilds closely guarded the secret formulas used in smelting church bells and weapons.
D)Astrological charts were frequently consulted to determine auspicious times for chemical experiments.
E)The Philosopher's Stone was believed to cure all bodily ailments and grant everlasting youth.
Cevabı göster
Doğru cevap: B) They pioneered distillation, discovered mineral acids, and invented crucial laboratory glassware.
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The James Webb Space Telescope (JWST) is stationed approximately 1.5 million kilometers away from Earth at the second Lagrange point (L2). This distant vantage point offers a critical operational advantage. ---- Because its infrared sensors must remain chilled to minus 233 degrees Celsius to avoid heat interference, this permanent shielding is essential for detecting distant, faint galaxies.
A)Astronomers communicate with the spacecraft using NASA's Deep Space Network of radio antennas.
B)It allows the telescope's tennis-court-sized sunshield to simultaneously block light and heat from the Sun, Earth, and Moon.
C)The Hubble Space Telescope was serviced five times by astronauts aboard the Space Shuttle.
D)Solar panels generate the electrical power needed to operate the telescope's scientific cameras and thrusters.
E)Lagrange points are positions in space where gravitational forces create stable equilibrium.
Cevabı göster
Doğru cevap: B) It allows the telescope's tennis-court-sized sunshield to simultaneously block light and heat from the Sun, Earth, and Moon.
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Mycorrhizal fungi establish an underground symbiotic network that connects the root systems of different forest trees. Through these fungal threads, often dubbed the "Wood Wide Web," trees can exchange vital nutrients, water, and biochemical signals. ---- For example, when a tree is attacked by defoliating insects, it can transmit chemical warning alerts through the network, prompting neighboring trees to produce defensive bitter tannins.
A)Commercial logging practices sever these fragile fungal connections and degrade forest health.
B)This subterranean communication enables forests to function as cooperative, resilient superorganisms.
C)Edible mushrooms harvested in deciduous woodlands include prized chanterelles and morels.
D)Pine trees produce resin to seal mechanical wounds caused by foraging bark beetles.
E)Sunlight penetrates dense canopies during autumn months as deciduous trees drop their foliage.
Cevabı göster
Doğru cevap: B) This subterranean communication enables forests to function as cooperative, resilient superorganisms.
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The evolution of feathers in theropod dinosaurs was long assumed to be a flight adaptation. However, paleontological discoveries of non-avian feathered fossils in northeastern China have completely overturned this assumption. Many of these feathered dinosaurs were ground-dwelling and anatomically incapable of aerodynamic flight. ---- Only much later in evolutionary history were feathers co-opted by early birds for gliding and powered flight.
A)Tyrannosaurus rex possessed relatively small forelimbs whose exact function remains debated.
B)Instead, feathers likely evolved initially for thermal insulation, brooding eggs, or species display.
C)Archaeopteryx is widely regarded as a transitional fossil bridging dinosaurs and modern birds.
D)Bird bones are uniquely hollow and lightweight to facilitate energy-efficient flight.
E)Feather colors in fossil specimens can sometimes be deduced from preserved melanosomes.
Cevabı göster
Doğru cevap: B) Instead, feathers likely evolved initially for thermal insulation, brooding eggs, or species display.
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The tragedy of the commons, first popularized by ecologist Garrett Hardin, illustrates the environmental dilemma that arises when multiple individuals exploit a shared, finite resource independently. Each user gains maximum personal benefit from utilizing as much of the resource as possible, while the costs of depletion are distributed across the entire collective. ---- As a consequence, without communal regulation, property rights, or state oversight, the shared resource inevitably suffers catastrophic depletion.
A)Economic models often assume that market participants act with rational self-interest.
B)Thus, individual rational self-interest leads inexorably to collective ruin.
C)Fisheries management policies have introduced quotas to prevent the collapse of Atlantic cod stocks.
D)Solar and wind resources are non-rivalrous and therefore immune to common-pool dilemmas.
E)Elinor Ostrom was awarded the Nobel Prize in Economics for her work on common resource governance.
Cevabı göster
Doğru cevap: B) Thus, individual rational self-interest leads inexorably to collective ruin.
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Language death occurs when a tongue loses its last native speaker and ceases to be passed down to subsequent generations. Globalization, urbanization, and state assimilation policies have accelerated this process dramatically. Over half of the world's roughly seven thousand spoken languages are projected to vanish by the century's end. ---- When a language disappears, we lose unique philosophical concepts, botanical knowledge, and indigenous oral histories forever.
A)Bilingual education programs have helped revitalize the Welsh and Maori languages.
B)This loss is not merely linguistic, but an irreplaceable cultural and intellectual tragedy.
C)English has become the dominant global lingua franca of aviation, science, and commerce.
D)Linguists record audio dictionaries of endangered tongues before older speakers pass away.
E)Grammatical complexity varies widely across independent language families around the world.
Cevabı göster
Doğru cevap: B) This loss is not merely linguistic, but an irreplaceable cultural and intellectual tragedy.
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The phenomenon of optical illusions reveals the brain's constructive role in sensory perception. The human visual system does not function like a passive camera simply recording pixels. ---- When interpreting ambiguous images, it fills in gaps, predicts trajectories, and extrapolates lighting cues based on prior experiences, sometimes producing dramatic misperceptions.
A)Retinal cones allow the human eye to perceive millions of distinct color shades.
B)Instead, it actively synthesizes raw sensory inputs into coherent mental representations.
C)Depth perception relies heavily on stereoscopic binocular vision.
D)Peripheral vision is exceptionally sensitive to movement in low-light environments.
E)Artists during the Renaissance mastered geometric linear perspective to depict spatial realism.
Cevabı göster
Doğru cevap: B) Instead, it actively synthesizes raw sensory inputs into coherent mental representations.
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The invention of the compass revolutionized maritime navigation in medieval Europe. Prior to magnetic compasses, mariners relied on coastal landmarks, prevailing wind directions, and stellar bodies to navigate. ---- With a magnetic needle consistently pointing toward magnetic north, ships could safely venture into open, cloud-covered oceans, initiating the Age of Exploration.
A)Astrolabes were utilized by medieval navigators to measure the altitude of celestial bodies.
B)Consequently, cloudy skies or thick fog often forced sailors to anchor or risk perilous disorientation.
C)Viking navigators are believed to have used calcite sunstones to locate the Sun on overcast days.
D)Shipbuilders developed multi-masted caravels equipped with triangular lateen sails for tacking against winds.
E)The magnetic pole drifts slowly over time due to fluid motion within Earth's outer iron core.
Cevabı göster
Doğru cevap: B) Consequently, cloudy skies or thick fog often forced sailors to anchor or risk perilous disorientation.
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Plastic pollution in the marine environment has reached staggering proportions. Over eight million metric tons of plastic waste leak into oceans each year. Marine organisms become tangled in discarded fishing nets, while plastic bags are frequently ingested by sea turtles mistaking them for jellyfish. ---- Toxic compounds adhere to these particles, which work their way up the food chain, ultimately threatening human health through seafood consumption.
A)Recycling initiatives must be subsidized by municipal governments to remain profitable.
B)Over time, wave action and ultraviolet sunlight break larger plastics down into hazardous microplastics.
C)Many countries have implemented bottle deposit schemes to encourage container returns.
D)Coral reefs generate significant tourism revenue for developing island economies.
E)Plastic packaging helps preserve food freshness during international container transport.
Cevabı göster
Doğru cevap: B) Over time, wave action and ultraviolet sunlight break larger plastics down into hazardous microplastics.
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The Library of Alexandria in ancient Egypt represented the ultimate intellectual ambition of the Hellenistic world. Founded under the Ptolemaic dynasty in the 3rd century BCE, the institution aimed to collect a copy of every scroll written in the known world. ---- Scribes copied confiscated manuscripts before returning duplicates to visiting ships, turning the city into the premier research center of antiquity.
A)Alexandria was laid out on a geometric grid plan designed by the architect Dinocrates.
B)To achieve this comprehensive archive, royal agents aggressively purchased books from foreign ports.
C)The lighthouse of Pharos was considered one of the Seven Wonders of the Ancient World.
D)Parchment made from animal hides proved far more durable than fragile Egyptian papyrus.
E)Julius Caesar's military campaign accidentally set fire to part of the harbor fleet in 48 BCE.
Cevabı göster
Doğru cevap: B) To achieve this comprehensive archive, royal agents aggressively purchased books from foreign ports.
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The invention of the submarine telegraph cable in the mid-19th century transformed intercontinental communication. Prior to undersea cables, transmitting a diplomatic dispatch or business contract across the Atlantic Ocean took at least ten days aboard fast steamships. ---- With electrical telegraph pulses flashing across the ocean floor in mere minutes, global commerce, news reporting, and foreign diplomacy entered the instantaneous modern era.
A)Telegraph cables frequently snapped due to severe underwater seismic tremors and fishing trawlers.
B)However, the successful laying of the transatlantic cable in 1866 collapsed that spatial barrier forever.
C)Early telegraph operators had to master Morse code to transcribe incoming electrical clicking sounds.
D)Steamships continued to carry bulk cargo and passengers across the Atlantic throughout the Gilded Age.
E)Radio communication eventually rendered undersea telegraph cables obsolete in the mid-20th century.
Cevabı göster
Doğru cevap: B) However, the successful laying of the transatlantic cable in 1866 collapsed that spatial barrier forever.
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Soil microorganisms are the unsung engineers of terrestrial ecosystems. A single teaspoon of healthy topsoil harbors billions of bacteria, fungi, protozoa, and nematodes. These microscopic entities decompose fallen foliage, cycle essential nitrogen and phosphorus, and build soil aggregate structure. ---- When fields are subjected to excessive chemical pesticides and intensive mechanical tillage, these fragile subterranean webs collapse, turning fertile ground into barren dirt.
A)Without their unceasing metabolic activity, higher plant life would quickly starve for essential nutrients.
B)Agricultural scientists are developing drought-tolerant genetically modified soybean cultivars.
C)Earthworms tunnel through soil profiles, enhancing aeration and moisture infiltration rates.
D)Nitrogen runoff from agricultural fields frequently triggers harmful algal blooms in downstream coastal bays.
E)Organic farming methods have gained popularity among environmentally conscious urban consumers.
Cevabı göster
Doğru cevap: A) Without their unceasing metabolic activity, higher plant life would quickly starve for essential nutrients.
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In behavioral economics, the "endowment effect" describes the cognitive bias whereby people ascribe greater subjective value to things merely because they own them. In classic experiments, participants randomly gifted a ceramic coffee mug demanded twice as much money to sell it as potential buyers were willing to pay. ---- This psychological attachment demonstrates that human decision-making is heavily influenced by loss aversion rather than purely rational cost-benefit calculation.
A)Economic models traditionally assume that individuals operate as rational utility maximizers.
B)They perceive parting with their possession as an acute loss, whereas non-owners view acquiring it as a neutral gain.
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Coral reefs are often called the rainforests of the sea due to their breathtaking biodiversity. Occupying less than one percent of the ocean floor, they provide shelter, nursery grounds, and foraging territories for over twenty-five percent of all marine species. ---- In addition to ecological value, coral barriers protect low-lying tropical coastlines from the destructive energy of hurricane storm surges.
A)Tourism operators generate substantial revenues from recreational scuba diving excursions.
B)Thousands of fish, mollusk, and crustacean species depend entirely on healthy coral structures for their survival.
C)Rising ocean temperatures cause corals to expel their symbiotic zooxanthellae algae.
D)Limestone skeletons secreted by tiny coral polyps accumulate over millennia to form massive reef barriers.
E)Ocean acidification inhibits the ability of marine calcifiers to synthesize protective calcium carbonate shells.
Cevabı göster
Doğru cevap: B) Thousands of fish, mollusk, and crustacean species depend entirely on healthy coral structures for their survival.