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