Which electromagnetic wave enables us to see objects?

a-infrared rays
b-visible light
c-ultraviolet light
d-gamma rays

I believe the correct answer from the choices listed above is option B. It is the visible light that enables us to see objects.  A typical human eye will respond to wavelengths from about 390 to 700 nm which is the visible light. Hope this answers the question.

No because scientist are still changing there mines today so they are not correct to this day

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.