A
Which of the following land features is caused by the movement of tectonic plates?
1. sinkhole
2. mountain
3. river
2. mountain
This process of ______ causes volcanic mountain ranges to form.
subduction
Which of the following statements best describes a tectonic plate?
1. The outermost compositional layer of the Earth
2. A block of lithosphere that moves around on top of the asthenosphere
2. A block of lithosphere that moves around on top of the asthenosphere
________ is the movement of matter that results from differences in density caused by variations in temperature.
Convection
The ______ is the soft layer of the Earth on which the tectonic plates move.
asthenosphere
The _____ layer is made up of two parts, the crust, & the rigid upper part of the mantel.
Lithosphere
Compression at a _______ boundary cause folded mountains to form.
convergent boundary
When two tectonic plates collide is called ____.
convergent plate
Volcanic eruptions are often accompanied by earthquakes. True or false?
True!
______ is molten rock that flows on Earth's surface.
Lava
Which volcanic feature forms a relatively small depression around a volcanoes vent?
1. crater
2. lava plateau
1. crater
This type of plate boundary occurs when plates pull apart, causing the crust to stretch.
Divergent boundary
What motion happens in a normal fault?
1. The hanging wall drops down relative to the footwall
2. The walls move past each other horizontally
The hanging wall drops down relative to the footwall
Scientists divide Earth into three main layers: the core, the mantel, and the crust. These three layers are identified in their _______ composition.
chemical composition
_______ happens when rocks along a fault move suddenly a release energy.
Earthquake
Most hotspots form over mantel plumes within a tectonic plate. True or false?
True!
________ is caused by the movement of tectonic plates causes stress to build up along a fault.
Earthquake
The ______ is the densest compositional layer and makes up one-third of Earth's mass.
Core
Name the three kinds of faults _____, _____, & ______.
Strike-slip faults
Normal faults
Reverse faults
Theory that the continents had once collided.
Pangea
The area with largest amount of occurring earthquakes are located on____.
1. A part of the ocean that in directly above the boundaries between tectonic plates
2. The part of the ocean that has a high rate of hurricanes and typhoons
1. A part of the ocean that in directly above the boundaries between tectonic plates
Long ago the eastern part of North America collided with the northern part of Africa. Which describes what happened?
1. folded mountains formed as a result of compressional stress
2. fault-block mountains formed as a result of compressional stress
1. folded mountains formed as a result of compressional stress
Most divergent plate boundaries lie under the worlds oceans. Which of the following is a process that occurs at divergent boundaries?
1. formation of mid-oceanic ridges
2. magnetic reversals
1. formation of mid-oceanic ridges
in what tectonic setting would an irrupting volcano most likely form?
1. hot spot
2. divergent plate boundary
3. convergent plate boundary
3. convergent plate boundary
Which volcano is made mostly of pyroclastic materials?
1. stratovolcano
2. shield volcano
3. cinder cone
3. cinder cone