earthquakes
what percent of earthquakes are caused by convergent plate boundaries
about 80%
Convection currents in the mantle are believed to cause what?
Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle
What happens at a convergent boundary?
plates collide
What is molten rock under the ground?
magma
Which of the following best describes what most rocks are composed of?
minerals
The point where movement occurred which triggered the earthquake is called the?
focus
Which of the following is a way in which inner earth material is returned to the surface?
what evidences that support the theory of continental drift.
What type of boundaries form volcanoes?
convergent
What is produced when existing rock is weathered and eroded?
sediment
Why do earthquakes occur near the San Andreas fault?
Where are the tectonic plates located?
lithosphere
What happens to older oceanic crust as new rock is formed during seafloor spreading?
What evidence do we about volcanoes that help prove that they are the results of plate interactions?
ring of fire
A mineral is a solid inorganic substance of natural occurrence.
true
What waves are formed second in an earthquake?
s wave
Which two materials are in the inner core and outer core composed of?
nickle, iron
What happens at a divergent plate boundary?
plates move apart
what ocean is the ring of fire located around?
In the rock cycle, this is when sediments are placed into a new location to eventually become new sedimentary rock.
deposition
Which type of wave is the first to form in an earthquake?
p wave
The upper part of the mantle that is malleable is called?
Asthenosphere
What happens at a transform plate boundary?
plates slide pasted each other
what percentage of volcanoes are in the ring of fire
75%
What type of rock forms when heat and pressure change the structure, texture, or composition of sedimentary rock?
Metamorphic