Earth's Layers
The outermost, solid layer of the Earth.
What is the crust?
Alfred Wegener formed the theory of continental drift.
Who formed the theory of continental drift?
Process by which rocks change shape under stress.
What is deformation?
Place where gas, ash, or melted rock come out of ground.
What is a volcano?
Ground movements that occur when blocks of rock in Earth move suddenly and release energy.
What are earthquakes?
It is made of iron and nickel.
What is the core made up of?
It is supported by locations of mountain ranges, rock formations, and climatic conditions.
How is the theory of continental drift supported?
Occurs when rock layers bend under stress.
How does folding occur?
Higher it is- the harder for lava for flow
How does viscosity affect the resistance of lava to flow?
First motion of earthquake occurs here.
What occurs at the focus?
The lithosphere is divided into tectonic plates.
What is the lithosphere divided into?
What is Pangaea?
Synclines and Anticlines
What are the two types of folds?
Happen when lava flows from fissures in Earth's surface.
How does fissure eruptions occur?
What happens in the process of elastic rebound?
Tectonic plates move on the asthenosphere.
On top of which layer do tectonic plates move?
It is about the age and magnetic patterns of sea-floor rocks.
What is the theory of plate tectonics?
Strike-slip, normal, and reverse.
What are the three types of faults?
Undersea volcanoes develop here since most of these boundaries are located on the ocean floor.
What landforms occur at divergent boundaries?
Divergent boundaries, Convergent boundaries, and Transform boundaries
Where do earthquakes happen?
Rock here flows slowly than rock in the asthenosphere.
Does rock in the mesosphere flow slower or faster than the rock in the asthenosphere?
Older crust is destroyed at the same rate new crust is forming.
Why is the Earth not getting larger?
It stretches or pulls rock apart.
How does tension deform rocks?
Composite volcanoes are common here.
What type of landform is common at convergent boundaries?
People can become injured or die and buildings can collapse, and also tsunamis can take place, causing drowning and floods.
What are some effects of earthquakes?