✔ 最佳答案
3. Plate tectonics and their movements
a. Folds result from the compression of sedimentary rocks in colliding plate margins.
b. Displacement of rocks on either side of a fracture is called a fault.
c. Normal faults result from tension. Reverse faults result from compression.
d. Plate margins are zones of instability.
e. Margins of divergent plates are constructive as new crust forms.
f. Margins of convergent plates are destructive as crust is destroyed.
g. Margins of plates moving sideways past each other are neither destructive nor constructive.
h. Formation of fold mountain involves sedimentation, collision of plates, subduction of margin and uplifting.
4.System to show mountain building
Input (Plate movement) → Process (Folding, Faulting, Volcanic activity) → Output Mountains (fold, fault and block), Volcanoes
5.Landforms produced by plate movements
Type of plate margin: Destructive, Constructive, Conservative
Type of plate movement : Destructive : Converging (Colliding); Constructive : Diverging (Parting); Conservative : Sliding
Type of force : Destructive : Compression; Constructive : Tension
Landform building processes: Destructive : Folding, Faulting, Volcanic activity; Constructive : Faulting, Volcanic activity; Conservation : Faulting
Types of landform : Destructive : Fold mountains, Volcanic mountains, Volcanic island arcs, Ocean trenches; Constructive : Block mountains, Volcanic mountains, Rift valleys, Mid-oceanic ridges; Conservative : Faults