An An example of a slow change caused by plate tectonics is
example of a rapid change caused by plate tectonics is
O climate change; precipitation
O mountain building; an earthquake
o the lithosphere; the molten core
O a volcanic eruption; oceanic crust

your the dumbest b**tch ive ever seen

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.