Question

part 4. in the 3 - columns, draw each of the faults and tell me how they move, and what they form.
strike slip fault
normal fault
reverse fault
convection currents deep in the mantle are the driving force behind plate tectonics. imagine these currents suddenly became uneven, with some areas moving much faster than others. how would this imbalance affect the motion of tectonic plates, and what long - term changes might we see on earths surface as a result?

Explanation:

Strike - slip faults have horizontal motion where two blocks slide past each other. Normal faults occur when tensional forces pull the crust apart, with one block moving down relative to the other. Reverse faults form due to compressional forces, where one block moves up over the other. If mantle convection currents became uneven, tectonic plate motion would be erratic. This could lead to more frequent and stronger earthquakes, volcanic eruptions in new or unexpected areas, and long - term changes like the formation of new landforms and the reshaping of coastlines.

Answer:

For Strike - Slip Fault: Draw two adjacent blocks with a vertical fault line between them, and arrows indicating horizontal sliding motion. Motion: Horizontal sliding. What they form: Can form linear valleys or offset streams.
For Normal Fault: Draw two blocks with a slanted fault line, and an arrow on the lower - moving block pointing down. Motion: One block moves down relative to the other. What they form: Can form rift valleys.
For Reverse Fault: Draw two blocks with a slanted fault line, and an arrow on the upper - moving block pointing up. Motion: One block moves up over the other. What they form: Can form mountain ranges.
If mantle convection currents became uneven: Earthquakes would be more frequent and intense. There could be new volcanic activity in unexpected areas. Long - term, new landforms like mountains or trenches could form, and coastlines could be reshaped.