Which group contains examples of materials that were not part of a living thing

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

How is zig zagging a form of acceleration?