A) Inner core B) Outer core C) Crust D) Mantle
A) Saturn B) Jupiter C) Mars D) Venus
A) 33% B) 50% C) 71% D) 85%
A) Troposphere B) Thermosphere C) Stratosphere D) Mesosphere
A) Lhotse B) Makalu C) K2 D) Mount Everest
A) Oxygen B) Argon C) Nitrogen D) Carbon dioxide
A) Evaporation B) Respiration C) Photosynthesis D) Fermentation
A) Southern Ocean B) Indian Ocean C) Pacific Ocean D) Atlantic Ocean
A) Isaac Newton B) Marie Curie C) Alfred Wegener D) Charles Darwin
A) Wind energy B) The Sun C) Fossil fuels D) Geothermal energy
A) Geology B) Ecology C) Astronomy D) Meteorology
A) Mesosphere B) Stratosphere C) Thermosphere D) Troposphere
A) Mercury, Venus, Earth, Mars B) Jupiter, Saturn, Uranus, Neptune C) Sun, Mercury, Venus, Earth D) Earth, Mars, Jupiter, Saturn
A) 48 hours B) 24 hours C) 36 hours D) 12 hours
A) Arabian Desert B) Antarctica C) Gobi Desert D) Sahara Desert
A) Tropic of Cancer B) Equator C) Prime Meridian D) Tropic of Capricorn
A) Aurora borealis B) Rainbow refraction C) Rayleigh scattering D) Greenhouse effect
A) Aluminum B) Silicon C) Oxygen D) Carbon
A) Titan B) Moon C) Ganymede D) Europa
A) Precambrian Era B) Mesozoic Era C) Paleozoic Era D) Cenozoic Era
A) Friction B) Magnetism C) Centrifugal force D) Gravity
A) Gondwana B) Laurasia C) Pannotia D) Rodinia
A) The fourth B) The second C) The third D) The first
A) 85% B) 70.8% C) 50% D) 29.2%
A) The Moon's gravitational pull B) The rotation speed of Earth C) Earth's distance from the Sun D) The tilt of Earth's axis with respect to its orbital plane.
A) 100 °C (212 °F) B) 0 °C (32 °F) C) 14.76 °C (58.57 °F) D) -18 °C (0 °F)
A) It acts as a greenhouse gas, helping to maintain liquid surface water. B) It forms clouds that cover only polar regions. C) It blocks all solar radiation. D) It has no significant role.
A) 730 days B) About 365.25 days C) 90 days D) 30 days
A) 150 million km B) 700,000 km C) 50,000 km D) 384,400 km (238,855 mi)
A) It has a circumference of about 60,000 kilometers. B) It has a circumference of about 40,000 kilometers. C) It has a circumference of about 10,000 kilometers. D) It is perfectly spherical.
A) The Ice Age B) The Cambrian Explosion C) The Permian Extinction D) The Great Oxidation Event
A) Since humans emerged B) For the last 100,000 years C) Since the first billion years of Earth's history. D) For the last 500 million years
A) Solar flares B) Natural volcanic activity C) Humanity's unsustainable impact on Earth's climate and biosphere. D) The Moon's gravitational pull
A) 300,000 years ago in Africa. B) In Europe 200,000 years ago. C) In Asia 500,000 years ago. D) In North America 100,000 years ago.
A) To stabilize Earth's axis B) To deflect most of the destructive solar winds and cosmic radiation. C) To maintain Earth's orbit around the Sun D) To generate electricity
A) Volcanic activity B) Differences in captured solar energy between geographic regions. C) The Moon's gravitational pull D) Earth's rotation speed
A) Its lack of greenhouse gases B) It sustains surface conditions and protects from meteoroids and UV-light. C) The presence of only nitrogen D) Its stability over time
A) They have no significant role B) They stabilize Earth's rotation C) They produce mountain ranges, volcanoes, and earthquakes. D) They prevent any geological activity.
A) The absence of an atmosphere B) The greenhouse effect from gases like CO2 and water vapor. C) Earth's proximity to the Sun D) Volcanic activity
A) 15 light-minutes B) About 8 light-minutes (1 AU) C) 5 light-minutes D) 10 light-years
A) 2006 RH120 B) 2010 TK7 C) Vanguard 1 D) 469219 Kamoʻoalewa
A) Humid tropics B) Arid C) Continental D) Cold polar
A) Chandra X-ray Observatory B) Hubble Space Telescope C) The International Space Station (ISS) D) Voyager 1
A) 500 m (1,640 ft) B) 1000 m (3,280 ft) C) 1200 m (3,937 ft) D) 797 m (2,615 ft)
A) Northward B) Clockwise C) Southward D) Counterclockwise
A) Precession B) Length-of-day variation C) Chandler wobble D) Nutation
A) Annual component B) 14-month cycle C) Precession D) Quasiperiodic motion
A) the water cycle B) the inorganic carbon cycle C) the phosphorus cycle D) the nitrogen cycle
A) The formation of the first continents B) The Great Oxygenation Event C) The Cambrian Explosion D) The Late Heavy Bombardment
A) Outer core B) Asthenosphere C) Inner core D) Crust
A) Gas B) Liquid C) Plasma D) Solid
A) Five B) Three C) Four D) Two
A) 10 ppm B) 50 ppm C) 20 ppm D) 100 ppm
A) Circular orbit B) Orbital precession C) Elliptical orbit D) Milankovitch cycles
A) Magnesium B) Iron C) Silicon D) Oxygen
A) 101.325 kPa B) 150 kPa C) 200 kPa D) 75 kPa
A) It stabilizes Earth's axis and causes tides. B) It has no effect on Earth's rotation C) It increases Earth's rotation speed D) It decreases Earth's rotation speed
A) Hydrogen B) Nitrogen C) Oxygen D) Carbon dioxide
A) Atmospheric boundary B) Gravity well C) Hill sphere D) Gravitational field
A) Old English eorðe B) Proto-Germanic *erþō C) Latin Terra D) Greek Gaia
A) Lithosphere-asthenosphere boundary B) Mohorovičić discontinuity C) Core-mantle boundary D) Outer core-inner core boundary
A) Half the size of the Sun B) Much larger than the Sun C) Almost the same apparent-sized disk D) Much smaller than the Sun
A) Tellus B) Gaea C) Gaia D) Terra
A) 78.084% B) 80.000% C) 70.000% D) 75.000%
A) Africa-Eurasia B) America C) Antarctica D) Australia
A) Gondwana B) Pangaea C) Laurasia D) Pannotia
A) *terra B) *erþō C) *tellus D) *gē
A) 3.8 Ga B) 4.54±0.04 Ga C) 5.0 Ga D) 6.0 Ga
A) The presence of a large atmosphere B) Its lack of moons C) Its proximity to the Sun D) Its composition and size compared to other rocky planets.
A) Late Modern English period B) Early Middle English period C) Classical Latin period D) Old English period
A) Shorter by about 8.4 ms B) The same length as the stellar day C) Slightly longer than the sidereal day D) Exactly 24 hours
A) The absence of an atmosphere B) Its proximity to other planets C) Its dynamic atmosphere and liquid water. D) Its lack of tectonic activity
A) Magnetosphere B) Atmosphere C) Ionosphere D) Exosphere
A) Gaea B) Tellus C) Terra D) Gaia
A) 30% B) 20% C) 50% D) 40%
A) Kilimanjaro B) Mount Everest C) Mariana Trench D) Chimborazo
A) Chandler wobble B) Milankovitch cycles C) Precession of the equinoxes D) Nutation
A) 30% B) 20% C) 40% D) 10%
A) Polar night B) Solstice C) Equinox D) Midnight sun
A) The South American Plate B) The Pacific Plate C) The Cocos Plate D) The Nazca Plate
A) Half B) Around two-thirds C) Three-quarters D) One-third
A) Quasiperiodic motion B) Nutation C) Chandler wobble D) Precession
A) Metamorphic B) Sedimentary C) Granitic D) Basaltic
A) The stratosphere B) The ozone layer C) The mesosphere D) The troposphere
A) Metamorphic rocks B) Igneous rocks C) Basaltic rocks D) Sedimentary rocks
A) The mesosphere B) The lithosphere C) The asthenosphere D) The hydrosphere
A) 50% B) 25% C) 97.5% D) 75%
A) Aurora B) Magnetic storm C) Substorm D) Solar flare
A) Argon B) Oxygen C) Carbon dioxide D) Nitrogen
A) Solstice B) Aphelion C) Perihelion D) Equinox
A) 87 mW/m2 B) 100 mW/m2 C) 50 mW/m2 D) 75 mW/m2
A) Oceanic trenches B) Subduction zones C) Transform faults D) Mid-ocean ridges
A) none B) a significant fraction C) all of it D) half of it
A) A perfect sphere B) A flat disc C) A rounded shape D) An irregular shape
A) Convergent boundaries B) Transform boundaries C) Subduction zones D) Divergent boundaries
A) Middle English B) Latin C) Old Norse D) Greek
A) Both hemispheres equally B) Northern Hemisphere C) Neither hemisphere D) Southern Hemisphere
A) 23.439281° B) 30.0° C) 15.0° D) 45.0°
A) The Antarctic Plate B) The Eurasian Plate C) The South American Plate D) The Cocos Plate
A) Nutation B) Precession C) Quasiperiodic motion D) Chandler wobble |