What are anticlines and synclines? a. they are types of folds created by compressional stresses b. they are folds in rock that are created by tension stresses c. they are types of faults created by tension stresses d. they are types of faults caused by compressional stresses

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?