Dirt , assuming it is flat and dry . The answer depends upon the velocity of the ball and what resistance there is in either the dirt or grass .
Only if you push it. On a perfectly flat surface, in neutral it will not roll without assistance.
A ball rolling along any surface will be slowed by friction. Different materials used for the ball and the rolling surface will affect the distance a ball will roll but in general, the smoother and more polished the surface is, the further a ball will roll.
ON a slanted surface
you are a cone
a marker that is flat so a ball can roll over it
a ball would roll better on one surface vs the other because one surface may have more friction the the other surface. For example a smooth surface like a polished wooden floor would have a ball roll better than a carpet where the hairs are stopping the progression of the ball.
a ball
So it doesn't roll off when you place it on a flat surface.
It wavers
it depends on the size and weight of the ball and if its flat tile or smooth...and what the ball is made of.
because friction acts on the ball.