4. Diego and Samuel help to clean up a polluted stream. They collect a glass bottle filled with some juice, several wood sticks , and a plastic food container. How do the particles in the juice differ from the particles in the glass, plastic, and wood?
a.) They are locked in place
b.)They can move past one one another
c.)They move freely in all directions
d.)They are locked in place, but can vibrate

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero. 

The correct answer should be b let me know if i’m wrong

The force is push or pull