1,000 trivia questions and answers: science & nature
Questions 301–400 of 1,000. Answer, explanation and source under each one.
Science & nature trivia questions 301–350
Q 301Which biochemist co-founded Genentech with Robert Swanson in 1976?
- ACraig Venter
- BHerbert Boyer
- CPaul Berg
- DStanley Cohen
Show answer
Herbert Boyer
It went on to produce the first recombinant human insulin.
Q 302In which year was the first Komen Race for the Cure held?
- A1979
- B1983
- C1992
- D1988
Show answer
1983
It took place in October, two years before the first National Breast Cancer Awareness Month.
Q 303What was the real name of the Taco Bell Chihuahua, the advertising mascot of 1997 to 2000?
- ADinky
- BBonita
- CChalupa
- DGidget
Show answer
Gidget
The dog was female, even though the character was voiced by a man.
Q 304A 1979 storm named Tip holds what world record?
- AWettest storm ever measured
- BLongest-lasting storm ever
- CFirst storm seen from space
- DLargest and most intense ever
Show answer
Largest and most intense ever
It reached winds of 190 mph and a record-low pressure of 870 hectopascals near Guam.
Q 305How long is the Amazon river dolphin, the largest of the river dolphins, at most?
- A2.6 m
- B6 m
- C4 m
- D1.5 m
Show answer
2.6 m
Young botos are grey and turn pink, then white, as they mature; they hunt by echolocation.
Q 306¿Cuántas velocidades tenía la caja de cambios de engranajes planetarios del Ford T?
- ADos
- BSeis
- CTres
- DCuatro
Show answer
Dos
Se cambiaba con el pie mediante el pedal del embrague: a fondo era la primera y soltando un poco, la segunda, con el punto muerto a mitad del recorrido.
Q 307Roughly how long is Uranus's rotation period?
- AAbout 17 hours
- BAbout 24 hours
- CAbout 6 days
- DAbout 10 hours
Show answer
About 17 hours
It rotates retrograde by the IAU definition, and the interior period was pinned down by tracking its aurorae.
Q 308Relative to its size, the Basset Hound holds what distinction among all breeds?
- AIt is the slowest
- BIt has the largest ears
- CIt is the heaviest-boned
- DIt has the loudest bay
Show answer
It is the heaviest-boned
Basset Hounds weigh 44 to 77 pounds on average, the frame of a large dog on very short legs.
Q 309Which design firm designed the Shanghai Tower?
- AFoster + Partners
- BKohn Pedersen Fox
- CGensler
- DSkidmore, Owings & Merrill
Show answer
Gensler
Its tiered design divides the building into nine vertical zones for energy efficiency.
Q 310Roughly how many people died of tuberculosis in 2024, making it the leading infectious killer?
- AAbout 1.2 million
- BAbout 12 million
- CAbout 5 million
- DAbout 250,000
Show answer
About 1.2 million
Incidence reached an estimated 10.7 million people that year.
Q 311Claude Shannon's 1937 MIT master's thesis showed that circuits could implement what?
- AFourier series
- BMatrix inversion
- CBoolean algebra
- DPrime factorization
Show answer
Boolean algebra
It has been called the most important master's thesis of all time.
Q 312Why is a sample of uranium-238 electroplated onto the cover?
- ASo finders can date it from its decay
- BTo make it detectable by radar
- CAs a gift of a rare element
- DTo power the stylus cartridge
Show answer
So finders can date it from its decay
Its half-life is 4.468 billion years; the ratio of remaining uranium reveals the record's age.
Q 313On what date did construction of the Three Gorges Dam officially begin?
- A1 January 2000
- B1 October 1989
- C20 May 1997
- D14 December 1994
Show answer
14 December 1994
The premier who launched it was himself a Moscow-trained hydroelectric engineer.
Q 314Florence stands on which river?
- AThe Arno
- BThe Tiber
- CThe Po
- DThe Adige
Show answer
The Arno
The river powered the textile mills and gave access to the sea, and it flooded catastrophically in 1966.
Q 315Unter welchem Spitznamen ist das Ford Modell T bekannt?
- AIron Lady
- BSilver Ghost
- CBlack Beauty
- DTin Lizzie
Show answer
Tin Lizzie
Auf Deutsch „Blechliesel“; es gilt als das erste für die breite Masse erschwingliche Automobil.
Q 316A baobab's large flowers remain reproductive for a maximum of how long?
- A15 hours
- B3 days
- CA full month
- D2 weeks
Show answer
15 hours
In the early 21st century baobabs across southern Africa began dying rapidly and mysteriously, possibly from mass dehydration.
Q 317Neon is theorised to be what, among all the elements?
- AThe least chemically reactive
- BThe best conductor
- CThe most abundant on Earth
- DThe densest gas
Show answer
The least chemically reactive
It is the only noble gas for which no compound has ever been definitively confirmed.
Q 318How does a snow leopard usually react when a herder drives it off its prey?
- AIt calls other snow leopards
- BIt attacks the herder
- CIt hides and returns at night
- DIt gives it up without a fight
Show answer
It gives it up without a fight
That timidity is one reason it has never killed a person.
Q 319Qual era a profissão do primeiro paciente a receber um transplante de coração de Barnard?
- AMotorista de ônibus
- BProfessor primário
- CDono de mercearia
- DPolicial aposentado
Show answer
Dono de mercearia
Jornalistas e equipes de filmagem invadiram o hospital, e o paciente virou um nome conhecido tanto quanto o cirurgião.
Q 320Resistance rates to penicillin above 90% have been reported in which anaerobic genus?
- ABacteroides
- BFusobacterium
- CClostridium
- DPeptostreptococcus
Show answer
Bacteroides
Anaerobes were historically considered less worrying for resistance, which makes the figures notable.
Q 321In 2021 EA pledged that its patent on which Apex Legends feature would be free for any developer to use?
- AThe ping system
- BThe jumpmaster
- CEvo Shields
- DRespawn beacons
Show answer
The ping system
Critics called the non-verbal communication wheel the gold standard for the genre, and it has since been copied widely.
Q 322Which enzyme, about 10% of its protein, lets H. pylori neutralise acid by splitting urea?
- AProtease
- BUrease
- CCatalase
- DOxidase
Show answer
Urease
The reaction releases ammonia and bicarbonate, raising the local pH so the bacterium can survive.
Q 323The 2019 O(n log n) integer multiplication algorithm only wins above how many bits?
- A2^1000000
- B2^172912
- C2^1024
- D2^65536
Show answer
2^172912
Harvey and van der Hoeven's method is conjectured optimal but is a galactic algorithm: useless for any number a real computer will ever multiply.
Q 324アインシュタインの舌を出した有名な写真を撮影したINS通信社のカメラマンは？
- Aアーサー・サス
- Bアルフレッド・アイゼンスタット
- Cユーサフ・カーシュ
- Dフィリップ・ハルスマン
Show answer
アーサー・サス
1951年の72歳の誕生日に撮られ、本人も気に入って9枚の焼き増しを頼みました。この写真は同年度のニューヨーク新聞写真家賞グランプリを受賞しています。
Q 325Which pale Japanese green tea contains far more caffeine than many darker teas?
- ABancha
- BHojicha
- CGenmaicha
- DGyokuro
Show answer
Gyokuro
Colour is a poor guide to caffeine in tea, which also carries small amounts of theobromine and theophylline.
Q 326Which Australian bird has often been labelled 'the world's most dangerous bird'?
- AWedge-tailed eagle
- BMagpie
- CEmu
- DCassowary
Show answer
Cassowary
Statistically the ostrich is deadlier, killing two or three people a year in South Africa.
Q 327Przy którym bałkańskim mieście odkryto cmentarzysko ze złotem z IV tysiąclecia p.n.e.?
- APłowdiw
- BWarna
- CBurgas
- DRuse
Show answer
Warna
W Europie Środkowej złote artefakty, takie jak złote kapelusze czy dysk z Nebry, pojawiły się w epoce brązu od II tysiąclecia p.n.e.
Q 328Which oviraptorid shared the lower beds of Velociraptor's home formation?
- AKhaan
- BOviraptor
- CCitipati
- DConchoraptor
Show answer
Oviraptor
Also present were the ankylosaur Pinacosaurus and the troodontid Saurornithoides.
Q 329Which pre-Socratic philosopher proposed atomism, an idea confirmed roughly 2,000 years later?
- ALeucippus
- BThales
- CAnaximander
- DHeraclitus
Show answer
Leucippus
Leucippus and his pupil Democritus argued matter was made of indivisible atoms; the pre-Socratics insisted every event had a natural cause.
Q 330Cardiologist Herbert Benson coined which term for the body's reversal of stress?
- ACalm reflex
- BRelaxation response
- CRest-and-digest
- DVagal reset
Show answer
Relaxation response
His 1975 book of the same name sold millions and argued that any repeated word or phrase, not only a mantra, could trigger the effect.
Q 331NASA's OSIRIS-REx collected a sample from which asteroid in October 2020?
- ARyugu
- BBennu
- CVesta
- DPsyche
Show answer
Q 332In the GameCube game, the player's looks depend on answers to which cat met on the train?
- APunchy
- BBlanca
- CKabuki
- DRover
Show answer
Rover
The chatty feline has opened several later entries too, quizzing new arrivals before they reach town.
Q 333Designer Michimasa Fujino said the HondaJet's nose was inspired by what?
- AA bullet train
- BA dolphin's snout
- CA Formula One nosecone
- DSalvatore Ferragamo shoes
Show answer
Salvatore Ferragamo shoes
Honda began sketching the jet in 1997 and finally delivered the first one in December 2015.
Q 334Which conqueror marched into Berlin in 1806 and carried the Brandenburg Gate's Quadriga off to Paris?
- ALouis XIV
- BGustavus Adolphus
- CCharles XII of Sweden
- DNapoleon Bonaparte
Show answer
Napoleon Bonaparte
The chariot came home in 1814 and its goddess was rebranded from Peace to Victory, with an Iron Cross added.
Q 335What was the single most common disorder in a 2013 UK study of 2,228 French Bulldogs?
- AHip dysplasia
- BConjunctivitis
- CDiarrhoea
- DEar infections
Show answer
Ear infections
They affected 14% of dogs, ahead of diarrhoea at 7.5%; skin problems were the most common group of disorders overall.
Q 336Which US drug crisis did the CDC describe as arriving in three waves, starting with painkillers?
- AThe vaping epidemic
- BThe meth epidemic
- CThe opioid epidemic
- DThe crack epidemic
Show answer
The opioid epidemic
Wave two was heroin, wave three synthetic fentanyl, and researchers now describe a fourth wave of stimulants mixed with fentanyl.
Q 337Where was the first successful captive breeding of platypuses achieved, in 1943?
- AHealesville Sanctuary
- BTaronga Zoo
- CAdelaide Zoo
- DMelbourne Zoo
Show answer
Healesville Sanctuary
David Fleay managed it in Victoria; Healesville later bred twins between 2008 and 2012.
Q 338From which city's zoo did two unclipped flamingos escape in 2005, one turning up in Texas 14 years later?
- AWichita, Kansas
- BDenver, Colorado
- CTulsa, Oklahoma
- DOmaha, Nebraska
Show answer
Wichita, Kansas
The escapee had been spotted by birders in Texas, Wisconsin and Louisiana in the meantime.
Q 339Shin Kubota, keeper of the only long-running Turritopsis dohrnii colony, ends his talks how?
- ASinging songs about them
- BServing jellyfish salad
- CReciting haiku
- DHanding out plush toys
Show answer
Singing songs about them
His colony rebirthed itself 11 times in two years, and he is a regular on Japanese television discussing it.
Q 340Quale tempio di Chichén Itzá proietta ombre a forma di serpente durante gli equinozi?
- AOsservatorio El Caracol
- BTempio di Kukulkan
- CTempio dei Giaguari
- DTempio dei Guerrieri
Show answer
Tempio di Kukulkan
Il monumento è noto anche come El Castillo; i megaliti di Nabta Playa e Stonehenge erano invece orientati sul solstizio d'estate.
Q 341How much does an adult Beagle typically weigh?
- A18–35 lb
- B55–65 lb
- C40–50 lb
- D10–15 lb
Show answer
18–35 lb
They stand 13 to 16 inches at the withers, with females slightly smaller than males on average.
Q 342Lotus Development, bought by IBM in 1995, was best known for which product?
- AThe Domino web server
- BThe Freelance presentation tool
- CThe Notes email client
- DThe 1-2-3 spreadsheet
Show answer
The 1-2-3 spreadsheet
The purchase came two years after IBM's record $8 billion loss and Lou Gerstner's arrival to turn the company around.
Q 343Who is usually credited with inventing the barometer in 1643?
- AGalileo Galilei
- BRobert Boyle
- CBlaise Pascal
- DEvangelista Torricelli
Show answer
Evangelista Torricelli
He was Galileo's assistant in the last months of Galileo's life and argued that the weight of the air, not a vacuum's pull, held the mercury up.
Q 344Which tree was claimed in 1973 to be dying out because its seeds needed to pass through a dodo?
- AThe ebony
- BThe traveller's palm
- CThe tambalacoque
- DThe baobab
Show answer
The tambalacoque
Stanley Temple's 'dodo tree' hypothesis was later discredited: the tree has germinated since and numbers several hundred, not thirteen.
Q 345Why do geologists regard the Northern Cordilleran Volcanic Province as a gap in the Ring of Fire?
- AIts volcanoes are caused by continental rifting
- BIt sits on the Alpide belt instead
- CIts volcanoes are all extinct
- DIt lies under a permanent ice sheet
Show answer
Its volcanoes are caused by continental rifting
The province lies between the Cascade Volcanic Arc to the south and Alaska's Aleutian Arc to the north.
Q 346What are the brain's supportive non-neuron cells called?
- AHepatocytes
- BGlia
- COsteocytes
- DPlatelets
Show answer
Q 347Fabric cut on the 'true bias' runs at what angle to the warp and weft?
- A30 degrees
- B45 degrees
- C60 degrees
- D90 degrees
Show answer
45 degrees
Cloth is more elastic and fluid in that direction, which Madeleine Vionnet exploited in her 1930s gowns.
Q 348What causes the aurora borealis, the glowing curtains of light near the North Pole?
- AMoonlight shining through thin clouds
- BSunlight bouncing off polar ice
- CVolcanoes hidden under the ice
- DParticles from the Sun hitting the air
Show answer
Particles from the Sun hitting the air
The most common colour is green, from oxygen high in the air; the southern version is the aurora australis.
Q 349Which palaeontologist suggested T. rex hunted in packs, citing a South Dakota site with three skeletons together?
- ARobert Bakker
- BPhilip Currie
- CJack Horner
- DPeter Larson
Show answer
Philip Currie
He compared it to Tarbosaurus and Albertosaurus finds; group hunting would have helped against horned and armoured prey.
Q 350How long before nylon's public announcement did Carothers die?
- AThree years
- BSixteen months
- CSix weeks
- DFour months
Show answer
Sixteen months
He felt he had accomplished little and run out of ideas, despite becoming the first industrial organic chemist elected to the National Academy of Sciences.
Science & nature trivia questions 351–400
Q 351Which body's exams are the sole basis for EMT certification in 46 US states?
- AThe Joint Commission
- BThe National Registry of EMTs (NREMT)
- CThe American Heart Association
- DThe American Red Cross
Show answer
The National Registry of EMTs (NREMT)
It is a nonprofit dating from the 1970s and its exams follow NHTSA education guidelines.
Q 352The black swan is the emblem of Western Australia and of which English seaside town?
- ABrighton
- BWeymouth
- CWhitby
- DDawlish
Show answer
Dawlish
It has been the town's emblem for some forty years; the birds escaped from ornamental collections in the 1800s.
Q 353The tarantula hawk wasp lays its egg on a paralysed tarantula. What does the larva do?
- AWaits for the spider to die naturally
- BUses the spider as a shield
- CDrains the spider's blood in one night
- DEats the living spider, saving vital organs for last
Show answer
Eats the living spider, saving vital organs for last
The wasp's own sting rates near the top of the Schmidt pain index: 'unrelenting pain that shuts down one's ability to do anything except scream'.
Q 354Which rock musician owned a pair of Dachshunds named Duke and Baron?
- ADavid Bowie
- BPatti Smith
- CIggy Pop
- DLou Reed
Show answer
Lou Reed
David Hockney, meanwhile, immortalised his pair, Stanley and Boodgie, in the book David Hockney's Dog Days.
Q 355Stegosaurus's plates were largest over which part of the body?
- AThe shoulders
- BThe tail tip
- CThe hips
- DThe neck
Show answer
The hips
Those hip plates could exceed 60 cm in both height and width; a 2010 review suggested plate outlines helped species recognise each other.
Q 356¿Cuánto tarda la luz del Sol en llegar a la Tierra?
- A12 minutos y 40 segundos
- B25 minutos y 15 segundos
- C8 minutos y 20 segundos
- D3 minutos y 10 segundos
Show answer
8 minutos y 20 segundos
Esa distancia media, definida con exactitud por la Unión Astronómica Internacional, equivale a una unidad astronómica.
Q 357Cheil Worldwide, established in 1973, is Samsung's arm in which industry?
- APharmaceuticals
- BShipping
- CInsurance
- DAdvertising
Show answer
Advertising
By 2022 revenue it was the world's tenth-largest ad agency.
Q 358How many deaths were blamed on the Armistice Day Blizzard of 1940?
- A146
- B121
- C96
- D46
Show answer
146
Temperatures fell 50 °F in places, and snow piled into 20-foot drifts across six states.
Q 359Which two ear types distinguish the Papillon from its otherwise identical sibling variety, the Phalene?
- ALong versus short
- BErect versus drooping
- CCropped versus natural
- DRounded versus pointed
Show answer
Erect versus drooping
Papillon means butterfly and Phalene means moth in French; the AKC recognised the breed in 1935.
Q 360Who wrote the 1974 novel Jaws and later regretted the man-eater image it created?
- AMichael Crichton
- BPeter Benchley
- CRobert Shaw
- DStephen King
Show answer
Q 361Szostak, Greider and Blackburn won the 2009 Nobel Prize for discovering what?
- ARibozymes
- BTelomerase
- CMicroRNA
- DRNA splicing
Show answer
Telomerase
Greider found the enzyme on Christmas Day 1984 as Blackburn's graduate student.
Q 362Storms in the Atlantic Ocean and northeastern Pacific are called what?
- AHurricanes
- BWilly-willies
- CTwisters
- DTyphoons
Show answer
Hurricanes
Wherever they form, scientists use the general term 'tropical cyclone' for all of them.
Q 363The US firebombing of 9-10 March 1945, codenamed Operation Meetinghouse, is described as what?
- AA costly failed mission
- BThe last bombing of the war
- CThe first B-29 mission of the war
- DThe deadliest bombing in history
Show answer
The deadliest bombing in history
About 16 square miles burned and some 100,000 civilians died, more than at Dresden, Hamburg or either atomic bombing as single events.
Q 364Which Scottish inventor demonstrated the world's first mechanical television system on 26 January 1926?
- APhilo Farnsworth
- BCharles Francis Jenkins
- CVladimir Zworykin
- DJohn Logie Baird
Show answer
John Logie Baird
His company achieved the first transatlantic television transmission just two years later, in 1928.
Q 365Which 1989 Billy Joel hit name-checks Sally Ride?
- AWe Didn't Start the Fire
- BMovin' Out (Anthony's Song)
- CThe River of Dreams
- DScenes from an Italian Restaurant
Show answer
We Didn't Start the Fire
She also appeared as herself in a 1999 episode of Touched by an Angel.
Q 366The Mercedes A-Class flipped in a 1997 Swedish evasive-manoeuvre trial. What is the trial nicknamed?
- AThe reindeer run
- BThe moose test
- CThe elk swerve
- DThe Stockholm slalom
Show answer
The moose test
The fix was to add electronic stability control and rework the suspension, which cost a further DM 300 million on top of the DM 2.5 billion spent developing the car.
Q 367Which country produced the first human born through in vitro fertilisation, in 1978?
- AEngland
- BUnited States
- CSweden
- DAustralia
Show answer
England
Louise Brown was born at Oldham General Hospital by planned caesarean; Robert Edwards received the 2010 Nobel Prize in Medicine for the work.
Q 368In California, black bears were found to visit what share of cougar kills?
- A90%
- B77%
- C24%
- D48%
Show answer
77%
The figure was 48% in Colorado; cougars generally give way to bears at carcasses and eat faster when bears are active.
Q 369Before 2019, the triple point of water was used to define which SI unit?
- AThe kelvin
- BThe joule
- CThe pascal
- DThe mole
Show answer
The kelvin
The 2019 SI revision tied the kelvin to the Boltzmann constant instead.
Q 370What is the Broca's area of the brain primarily responsible for?
- ASpeech production
- BPain perception
- CVision processing
- DMemory formation
Show answer
Speech production
Broca's area, located in the left frontal lobe, is crucial for speech production and language processing. Damage to it causes Broca's aphasia, where a person understands language but struggles to speak fluently.
Q 371Opened on 27 April 1828 for scientific study, which institution is the world's oldest scientific zoo?
- ADublin Zoo
- BLondon Zoo
- CBerlin Zoological Garden
- DAmsterdam's Artis
Show answer
London Zoo
It sits at the northern edge of Regent's Park and is run by the Zoological Society founded two years earlier by Sir Stamford Raffles and Sir Humphry Davy.
Q 372¿Cuántos huesos suman algunos textos al contar el estribo como dos unidades independientes?
- A208
- B204
- C196
- D200
Show answer
208
Los huesos suturales o supernumerarios que algunas personas tienen en el cráneo tampoco entran en el recuento habitual.
Q 373One of the first applications of the wheel and axle was a tool for doing what?
- AGrinding grain
- BLifting water
- CSpinning thread
- DMaking clay pots
Show answer
Making clay pots
True free-spinning potter's wheels were developed in Mesopotamia by 4200–4000 BCE.
Q 374The immortal jellyfish achieves its trick through which cell process?
- AComplete metamorphosis
- BProgrammed apoptosis
- CTransdifferentiation
- DMeiotic division
Show answer
Transdifferentiation
Stressed, sick or old medusae drop back to the polyp stage and start again, though most die of predation first.
Q 375Ceres seemed to fill the gap predicted by which formula, which had already 'predicted' Uranus's distance?
- AKepler's third law
- BHubble's law
- CThe Titius–Bode law
- DNewton's inverse-square law
Show answer
The Titius–Bode law
The rule called for a planet at about 2.8 AU, and Ceres orbits at almost exactly that distance.
Q 376Which two US states prohibit physical therapists from performing spinal manipulation?
- ATexas and Florida
- BWashington and Arkansas
- CNew York and Ohio
- DIowa and Kansas
Show answer
Washington and Arkansas
No single profession 'owns' spinal manipulation, which osteopaths and physiotherapists also perform.
Q 377At the spring equinox, roughly how long are day and night?
- AIt depends on the hemisphere
- BFourteen hours each
- CTen hours each
- DTwelve hours each
Show answer
Twelve hours each
From then until the summer solstice, days lengthen and nights shrink. The astronomical vernal equinox falls between March 19 and 21.
Q 378Como vários autores também denominam o sono REM?
- ASono leve
- BSono profundo
- CSono lúcido
- DSono paradoxal
Show answer
Sono paradoxal
O nome destaca o contraste entre o cérebro em plena atividade e um corpo praticamente paralisado durante essa fase do sono.
Q 379Which competing two-seater debuted in 1955, the same year GM cut Corvette production to 700 cars?
- AKaiser Darrin
- BStudebaker Avanti
- CFord Thunderbird
- DNash-Healey
Show answer
Ford Thunderbird
A glut of unsold 1954 models forced the cutback; the Studebaker Speedster and Chrysler C-300 also arrived that year.
Q 380Which astronomer's 1957 ground observations revealed Europa's water-ice composition?
- AGerard Kuiper
- BClyde Tombaugh
- CFred Whipple
- DCarl Sagan
Show answer
Gerard Kuiper
Gravitational calculations had already suggested a water-rich body.
Q 381The word 'inertia' derives from a Latin word meaning what?
- ASpeed
- BStrength
- CIdleness
- DWeight
Show answer
Idleness
Kepler assumed rest was the natural state of things, so inertia to him was a body's laziness about moving at all.
Q 382Which claim about the Fisher Space Pen is TRUE?
- ASoviets refused ever to use it
- BNASA bought 400 of them at roughly $6 each
- CPencils were NASA's preferred tool
- DIt cost NASA millions while Soviets used pencils
Show answer
NASA bought 400 of them at roughly $6 each
Pencils shed conductive graphite and flammable shavings, which is a bad idea in a capsule.
Q 383Astronomically, when does the Sun really pass through the constellation Aquarius (as of 2002)?
- AFebruary 16 to March 12
- BDecember 20 to January 15
- CMarch 13 to April 18
- DJanuary 20 to February 19
Show answer
February 16 to March 12
Sidereal astrology, which tracks the stars, puts the sign from February 15 to March 14.
Q 384In welchem Land entstand in den 1860er-Jahren die Wortschöpfung „Automobil“?
- AFrankreich
- BEngland
- CDeutschland
- DItalien
Show answer
Frankreich
„Voiture automobile“ bezeichnete 1875/1876 zunächst eine mit Pressluft betriebene Straßenbahn; im heutigen Sinn setzte sich das Wort in den 1890er-Jahren durch.
Q 385Wie lange brauchen Neutrinos aus dem Sonnenkern etwa bis zur Erde?
- Agut acht Stunden
- Bgut acht Tage
- Cgut acht Minuten
- Dgut acht Sekunden
Show answer
gut acht Minuten
Die Photonen brauchen dagegen zwischen 10.000 und 170.000 Jahre, bis sie die Sonnenoberfläche erreichen.
Q 386Roughly what resolution can electron microscopes achieve, compared with 200 nm for light microscopes?
- A10 nm
- B0.1 nm
- C50 nm
- D1 nm
Show answer
0.1 nm
An electron's wavelength can be more than 100,000 times shorter than that of visible light.
Q 387If an aftershock is larger than the main shock, what is the original quake redesignated as?
- AA precursor
- BA doublet
- CA foreshock
- DA swarm event
Show answer
A foreshock
Seismologists simply promote the bigger event to mainshock and demote the earlier one.
Q 388Why does Britain get so many showers in April, according to meteorologists?
- ASea ice melts nearby
- BThe jet stream shifts north
- CThe Gulf Stream weakens
- DSaharan dust arrives
Show answer
The jet stream shifts north
The shift lets Atlantic depressions sweep in, so a single day can swing from sunshine to snow.
Q 389What is the scientific name for the hammerhead shark family?
- ASphyrnidae
- BCarcharhinidae
- CLamnidae
- DSphyraenidae
Show answer
Sphyrnidae
Sphyrna is Greek for hammer; Sphyraenidae, confusingly, are the barracudas.
Q 390Discus aquaculture is a major industry in which Asian country in particular?
- AThailand
- BSouth Korea
- CJapan
- DPhilippines
Show answer
Thailand
The genus name Symphysodon refers to an unusual fusion of the teeth.
Q 391Up to how long can a sloth hold its breath underwater?
- A90 minutes
- B4 minutes
- C12 minutes
- D40 minutes
Show answer
40 minutes
They slow an already sluggish heart rate to less than a third of normal, and are surprisingly good swimmers.
Q 392The Atlantic's deepest point, the Milwaukee Deep, lies where?
- AThe Romanche Trench
- BThe South Sandwich Trench
- CThe Puerto Rico Trench
- DThe Cayman Trough
Show answer
The Puerto Rico Trench
At 8,376 metres it is more than two kilometres shallower than the Challenger Deep.
Q 393The 1883 eruption of Krakatoa, in late August, produced a sound heard how far away?
- AAbout 50 miles
- BAbout 800 miles
- CNearly 3,000 miles
- DAbout 300 miles
Show answer
Nearly 3,000 miles
The blast was heard in Alice Springs, Australia and on Rodrigues Island near Mauritius; over 36,000 people died, mostly in the tsunamis.
Q 394A mushroom is the fruiting body of what kind of organism?
- AAn alga
- BA fungus
- CA bacterium
- DA plant
Show answer
Q 395The oldest butterfly fossils date to the Paleocene, about how many million years ago?
- A356
- B156
- C56
- D256
Show answer
56
Molecular clocks suggest the group actually arose earlier, in the Cretaceous, and that the oldest known fossil is a skipper from Denmark.
Q 396In a reef aquarium, what is a refugium?
- AA chiller for hot summers
- BA quarantine tank for sick corals
- CA hiding cave for shy fish
- DA side tank for growing helpful algae
Show answer
A side tank for growing helpful algae
It often shares a divided tank with the sump, where the pumps and heaters live out of sight.
Q 397Sven the reindeer is the companion of which Frozen character?
- AElsa
- BHans
- COlaf
- DKristoff
Show answer
Kristoff
He helps Anna search for her sister Elsa in the 2013 Disney film.
Q 398The Great Smog of 1952 prompted which landmark British law?
- AAlkali Act
- BRivers Pollution Act
- CPublic Health Act of 1875
- DClean Air Act of 1956
Show answer
Clean Air Act of 1956
The smog killed at least 4,000 people; later estimates put the toll at 10,000 to 12,000.
Q 399Which British prime minister resigned in January 1957 after being accused of misleading Parliament over the Suez Crisis?
- AClement Attlee
- BHarold Macmillan
- CAnthony Eden
- DWinston Churchill
Show answer
Anthony Eden
US pressure and a run on sterling forced Britain, France and Israel to withdraw.
Q 400A 2022 UK study gave the Bulldog what life expectancy, second lowest of all breeds studied?
- A9.8 years
- B11.2 years
- C8.5 years
- D7.39 years
Show answer
7.39 years
A 2024 UK study was kinder at 9.8 years, still far short of the 12.7-year purebred average.
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