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Earth Science & Geology Quiz
Earth Science & Geology · Expert
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
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The largest mass extinction in Earth's history, which wiped out over 90% of marine species, occurred at the end of which period?
- A. Cretaceous
- B. Triassic
- C. Permian
- D. Devonian
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In which geological process is one tectonic plate forced under another into the mantle, often creating deep ocean trenches and volcanic arcs?
- A. Rifting
- B. Subduction
- C. Folding
- D. Faulting
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What is the term for the study of the depth and topography of the ocean floor?
- A. Cartography
- B. Bathymetry
- C. Geomorphology
- D. Hydrometry
-
What are the giant waves caused by undersea earthquakes?
- A. Tides
- B. Tsunamis
- C. Rip curls
- D. Currents
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What is the outer rocky layer of Earth called?
- A. Biosphere
- B. Atmosphere
- C. Lithosphere
- D. Hydrosphere
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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
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What is the name for the region of space surrounding Earth where the planet's magnetic field dominates over the solar wind?
- A. Ionosphere
- B. Magnetosphere
- C. Exosphere
- D. Stratosphere
-
What is the ratio of a mineral's weight to the weight of an equal volume of water?
- A. Density
- B. Specific Gravity
- C. Molar Mass
- D. Hardness
-
During which period of the Paleozoic Era did the first land plants and insects appear, following a period of massive coral reef development?
- A. Cambrian
- B. Silurian
- C. Carboniferous
- D. Permian
-
Which type of rock is formed from the cooling and solidification of magma or lava?
- A. Sedimentary
- B. Metamorphic
- C. Igneous
- D. Evaporite
-
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
-
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
-
Which sedimentary rock is formed primarily from the accumulation of calcium carbonate from the shells and skeletons of marine organisms?
- A. Sandstone
- B. Limestone
- C. Gypsum
- D. Basalt
-
Which specific property of a mineral describes the way light reflects off its surface, often categorized as metallic or non-metallic?
- A. Streak
- B. Hardness
- C. Luster
- D. Cleavage
-
Which fundamental law of geology states that in an undisturbed sequence of rocks, the oldest layer is at the bottom?
- A. Law of Cross-Cutting Relationships
- B. Law of Original Horizontality
- C. Law of Superposition
- D. Law of Faunal Succession
-
What is the estimated temperature at the Earth's center (the Inner Core)?
- A. 1,000C
- B. 2,500C
- C. 5,200C
- D. 10,000C
-
Which landscape feature is characterized by sinkholes, caves, and disappearing streams, formed by the dissolution of soluble bedrock?
- A. Glacial till
- B. Karst topography
- C. Arid desert
- D. Volcanic plateau
-
Which is the most common gas in Earth's atmosphere?
- A. Argon
- B. Carbon dioxide
- C. Nitrogen
- D. Oxygen
-
What is the term for a continental margin that is not a plate boundary and is characterized by a wide continental shelf, like the U.S. East Coast?
- A. Active Margin
- B. Passive Margin
- C. Transform Margin
- D. Subduction Margin
-
What is the term for the long-term cycle in which carbon is exchanged between Earth's rocks, soil, oceans, and atmosphere?
- A. The Nitrogen Cycle
- B. The Carbon Cycle
- C. The Hydrological Cycle
- D. The Rock Cycle