Contents
- What is it called when new crust is created?
- Why are new crusts built along the ocean floor?
- Can we prove the Earth’s crust is in motion by studying the ocean floor?
- What is the theory of seafloor spreading?
- What are the features of seafloor?
- Why is the age of the ocean crust used as evidence for plate tectonics?
- How old is the youngest seafloor?
- What is the difference between trenches and ridges?
- How do scientists get sediment cores from the bottom of the ocean can they sample in deep water?
- What are two pieces of evidence that support seafloor spreading?
- What three types of evidence support the theory of seafloor spreading?
- What evidence is gathered by drilling into the ocean floor?
- What is the importance of seafloor spreading?
- How does the evidence of paleomagnetism explain the movement of spreading centers?
- What are the lines of evidence that support the plate movement?
- How do ocean ridges and deep sea trenches support the theory?
- What evidence helped support the theory of seafloor spreading?
- What is the average speed of seafloor spreading?
- Who proposed the seafloor spreading?
- What happens when two oceanic plates collide?
- What are the steps in the process of seafloor spreading?
What is it called when new crust is created?
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