What is the primary force driving the movement of tectonic plates?
The Earth's rotation
Wind currents
Convection currents in the mantle
Earth's magnetic field
Continental plates are less dense than oceanic plates.
True
False
Earthquakes are most commonly associated with which type of plate boundary?
Transform
Divergent
All types of plate boundaries cause earthquakes
Convergent
The process of one tectonic plate sliding underneath another is known as:
Seafloor spreading
Subduction
Earthquake
Convection
What are the two kinds of tectonic plates?
Oceanic and Continental
What is formed when two tectonic plates collide at a convergent boundary?
Earthquakes ONLY
Mountain ranges or deep ocean trenches
Ocean ridges
Volcanoes
Who developed the theory of continental drift?
Alfred Einstein
Elvis Presley
Alfred Wegener
Marie Curie
Which of the following is an example of a divergent boundary?
The San Andreas Fault
The Mid-Atlantic Ridge
Mount St. Helens
The Himalayan Mountains
What is the main theory behind plate tectonics?
The Earth’s crust is completely solid and does not change.
Earth's outer layer is divided into large, moving pieces.
The Earth’s core is made of solid iron only.
Earth's continents are fixed in place.
Where are most volcanic eruptions like to occur?
At convergent and divergent plate boundaries
At transform boundaries
In places where there are no plate movements
In the middle of continents
What is seafloor spreading?
The sinking of oceanic plates at subduction zones
The formation of new volcanoes in the ocean
When new oceanic crust is created at mid-ocean ridges
The movement of continents across the ocean floor
Which of the following is NOT evidence supporting the theory of plate tectonics?
The presence of deep ocean trenches only at mid-ocean ridges
The matching of rock layers on different continents
The distribution of similar fossils across continents
The shape of the continents, which appear to fit together
Which of the following is TRUE about the theory of continental drift?
The continents have always been in their current positions.
Continental drift is unrelated to plate tectonics.
There was once a supercontinent called Pangaea.
The movement of continents is caused by ocean currents.
Which tectonic plate is B.C. on?
North American
Indo-Australian
Antarctic
South American
What happens at a transform boundary?
Plates move away from each other and form new crust.
Plates move downward into the mantle.
Plates slide past each other horizontally; earthquakes
Plates move towards each other and form mountains.
The Himalayas were formed by the collision of which two tectonic plates?
Indian and Eurasian
North American and Eurasian
Pacific and North American
African and South American
What kind of plate boundary is this?
Convection
Divergent
Convergent
Transform
What kind of plate boundary is this?
Divergent
Convection
Convergent
Transform
What kind of plate boundary is the Mariana Trench an example of?
Divergent
Convergent
Transform
Which major tectonic plate is composed of almost 100% oceanic crust?
Eurasian
Pacific
North American
African
Which of the following best describes the Earth's lithosphere?
A region where oceanic plates meet continental plates
The rigid outer layer, which is broken into tectonic plates
The layer of molten rock beneath the crust
The inner core of the Earth
What is the Ring of Fire?
A region where many meteor impacts occur
A series of volcanoes in the Pacific Ocean
A belt of volcanic activity in the Arctic
A famous earhquake zone in the Atlantic Ocean