Look around you to find an object in motion .describe the objects motion by discussing its position and direction of motion in relation to a refrences point . explain how you could determine the objects speed.

A bike. In the middle of the street, it is moving north when looking from the light pole's view. I can determine the object's speed by looking at the speedometer I see on the sidewalk that shows how fast a vehicle on the road is going.

C, small, hard spheres with insignificant volumes

Atp, shorthand for adenosine triphosphate, is the standard molecule for cellular enger in the human body. all motion and metabolic  processes  within the body begins with energy that is released from  atp, as its phosphate bonds are broken in cells through a  process  called hydrolysis.