The electric flux through two adjacent spherical surfaces separated by a small distance is known to be the same. mark all that may be correct.

-there is no electric field present in this region of space.
-there is a constant e field present in this region of space.
-the electric flux through the surface of each sphere has a constant value of zero.

The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.

The answer is as follows in the photo

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.