In young's experiment, coherent light passing through two slits separated by a distance d produces a pattern of dark and bright areas on a distant screen. if instead you use 10 slits, each the same distance d from its neighbor, how does the pattern change? a) the bright areas move farther apart. b) the bright areas move closer together. c) the spacing between bright areas remains the same, but the bright areas become narrower. d) the spacing between bright areas remains the same, but the bright areas become broader.

Magma  is composed of molten rock and is  stored  in the earth's crust. lava is  magma  that reaches the surface of our planet through a volcano vent.

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.