Unit 3 Review
Quiz by MEGAN REED
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18 questions
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- Q1How do volcanoes form?when oceanic plates move under continental plates at a convergent boundary (subduction)30s
- Q2Scientists digging near a riverbed find fossils of many organisms in the top layers. As they dig into deeper layers, there are no fossils of fish. Why?During an earlier time period, a river did not run through the area30s
- Q3Where do activities such as earthquakes and volcanic eruptions occur?Along plate boundaries30s
- Q4Where do scientists find evidence that the Earth's crust has been lifted above its original level?fossils of sea animals found on mountaintops30s
- Q5What causes earthquakes?the movement of tectonic plates that release energy30s
- Q6What three pieces of evidence supported Wegener's theory of continental drift?fossils, glacier evidence, fit of the continents30s
- Q7Boundary where two plates collideConvergent boundary30s
- Q8Boundary where two plates move apartDivergent boundary30s
- Q9Where do most volcanoes occur?Convergent plate boundaries30s
- Q10What process occurs when an oceanic plate pushes beneath a continental plate?Subduction30s
- Q11Magma rises to become new oceanic crust wheretwo plates separate and move apart from one another.30s
- Q12How do mountains form?Two continental plates collide30s
- Q13How does the mantle cause Earth's plates to move?Convection currents30s
- Q14Why do many earthquakes and volcanoes occur along the Ring of Fire?There are many active plate boundaries in that area30s
- Q15What is the main cause of seafloor spreading?new rock forming between two crustal plates at a mid-ocean ridge30s