Earthquakes
What is the place inside the Earth where an earthquake begins called?
The focus.
What is the name of the liquid rock that erupts from a volcano?
Lava
Which mountain range includes Mount Everest, the highest point on Earth?
The Himalayas.
Who proposed the theory of seafloor spreading in the 1960s?
Harry Hess.
Who is credited with the theory of continental drift, which led to the idea of plate tectonics?
What do we call the point on Earth's surface directly above the focus?
The epicenter.
What is a volcano that has not erupted in recent history and is not expected to erupt again called?
An extinct volcano.
What is the name of the longest mountain range in the world, located underwater?
The Mid-Atlantic Ridge.
Which ocean ridge is most associated with seafloor spreading?
The Mid-Atlantic Ridge.
What type of boundary occurs when two tectonic plates move toward each other?
Convergent boundary.
Name two types of faults commonly associated with earthquakes.
Normal fault or reverse fault or strike fault.
What is the name of the chain of volcanoes and earthquake sites around the edges of the Pacific Ocean?
The Ring of Fire.
Where do rift eruptions occur ?
Divergent plate boundaries.
What type of rock makes up the majority of the seafloor?
Basalt.
What is the name of the supercontinent that existed over 200 million years ago?
Pangea
What are the vibrations called that are caused by earthquakes?
Seismic waves
where do most of most volcanoes form at?
Convergent plate boundary.
Give 1 example where rift eruptions occur at ?
or
at the great rift valley in africa.
What evidence supports seafloor spreading by showing that the seafloor is older further from mid-ocean ridges?
Explain how subduction zones contribute to the recycling of oceanic crust and the creation of volcanic arcs.
What is the difference between a thrust fault and a strike-slip fault?
What are hot regions of earth's mantle where magma rises to the surface by breaking through weak parts of the lithosphere
Hot spots
What is the name of the mountain range that stretches across the western United States, including Colorado and Wyoming?
In what year The glomar challenger began collecting samples
1968
Explain how plate tectonics causes earthquakes, volcanic eruptions, and mountain building.
Plate tectonics causes these events by the movement of tectonic plates. Converging plates can cause earthquakes and mountains to form, while diverging plates can lead to volcanic eruptions and the creation of new ocean floor.