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