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Earth Science & Geology Quiz

Earth Science & Geology · Easy

20 questions · Unlimited attempts · Free online practice

Earth is a planet in constant motion, shaped by powerful natural forces over billions of years. Earth science and geology help us understand everything from towering mountains and...

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All 20 questions in this Earth Science & Geology quiz
  1. What was the name of the supercontinent that existed approximately 335 million years ago and began to break apart about 175 million years ago?

    • A. Gondwana
    • B. Laurasia
    • C. Pangea
    • D. Rodinia
  2. Which mineral is used as the standard for a hardness of 10 on the Mohs scale, making it the hardest naturally occurring substance?

    • A. Quartz
    • B. Topaz
    • C. Diamond
    • D. Corundum
  3. Which type of crust is generally thinner, denser, and younger than its counterpart?

    • A. Continental Crust
    • B. Oceanic Crust
    • C. Lithospheric Mantle
    • D. Asthenospheric Crust
  4. Which is the most common gas in Earth's atmosphere?

    • A. Argon
    • B. Carbon dioxide
    • C. Nitrogen
    • D. Oxygen
  5. What instrument is used to measure earthquakes?

    • A. Barometer
    • B. Seismograph
    • C. Anemometer
    • D. Thermometer
  6. What is the term for an underground layer of water-bearing permeable rock, gravel, or sand from which groundwater can be extracted?

    • A. Water Table
    • B. Aquifer
    • C. Artesian Well
    • D. Watershed
  7. What is the most common cause of a tsunami?

    • A. High winds during a hurricane
    • B. Underwater landslides
    • C. Submarine earthquakes at subduction zones
    • D. Volcanic eruptions on land
  8. In seismology, what is the point on the Earth's surface directly above where an earthquake starts?

    • A. Focus
    • B. Hypocenter
    • C. Epicenter
    • D. Nadir
  9. What is the term for the percentage of the total volume of a rock or sediment that consists of open spaces?

    • A. Permeability
    • B. Porosity
    • C. Density
    • D. Capillarity
  10. Which layer of the atmosphere contains the highest concentration of ozone, protecting life from harmful ultraviolet radiation?

    • A. Troposphere
    • B. Stratosphere
    • C. Mesosphere
    • D. Exosphere
  11. What is the scientist who studies weather called?

    • A. Biologist
    • B. Geologist
    • C. Meteorologist
    • D. Astronomer
  12. According to geochemical models, what are the two most abundant elements in the Earth's solid Inner Core?

    • A. Silicon and Oxygen
    • B. Iron and Nickel
    • C. Magnesium and Iron
    • D. Aluminum and Silicon
  13. What is the process called when sediment is turned into solid rock through compaction and cementation?

    • A. Metamorphism
    • B. Lithification
    • C. Erosion
    • D. Crystallization
  14. Which element is the most abundant in Earth's atmosphere?

    • A. Carbon
    • B. Nitrogen
    • C. Oxygen
    • D. Hydrogen
  15. Which type of volcano is characterized by broad, gently sloping sides and is built primarily of fluid basaltic lava flows, like those in Hawaii?

    • A. Stratovolcano
    • B. Shield Volcano
    • C. Cinder Cone
    • D. Lava Dome
  16. Which principle states that a geologic feature (like a fault or an intrusion) must be younger than the rock it cuts through?

    • A. Law of Superposition
    • B. Law of Cross-Cutting Relationships
    • C. Law of Inclusions
    • D. Law of Original Horizontality
  17. What is the term for the large area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur?

    • A. The Mid-Atlantic Ridge
    • B. The Bermuda Triangle
    • C. The Ring of Fire
    • D. The Great Rift Valley
  18. What is the name for molten rock beneath Earth's surface?

    • A. Lava
    • B. Sediment
    • C. Basalt
    • D. Magma
  19. What type of curved river bend is formed by the erosion of the outer bank and the deposition of sediment on the inner bank?

    • A. Delta
    • B. Oxbow
    • C. Meander
    • D. Levee
  20. What are the giant waves caused by undersea earthquakes?

    • A. Tides
    • B. Tsunamis
    • C. Rip curls
    • D. Currents