Layers?

Volcanoes 
Some volcanoes are form at convergent boundaries. Boundaries that are between two plates, that move toward each other.Boundaries form trench, ocean ridges and transform fault, called pacific ring of fire. Also volcanoes form at divergent boundaries, two plate tectonic move away from each other. Lava is the molten rock that come out of a volcano.Magma is a molten material be neath Earth's crust. Valleys, hills,shield. Hot spot volcanic region that is Anomalous hot compared whit mantle.

Pate Tectonic  
Africa and South America look like pieces of a puzzle, this support the theory that all continents were one big continent. Pangaea was when all continents  were ones big continent. Scientists believe Pangaea existed about two or tree hundred million years ago. Then the continents break apart and form the continents we see today.

Mountains
Mountains are big lad form that rise well above the surrounding land for a limited area in from of a peak. Mountains are large and taller than hills and are more than 600m in height. Mountain places are called, montane. They are formed when the oceanic oceanic crust is subducted because is to dense.