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