<span>The answer is it meant that fewer jobs were available and caused high unemployment rates. The Neolithic Revolution also called before as the Agricultural Revolution, was the wide-scale move of numerous human societies from a way of life of chasing and assembling to one of settlement, making conceivable an undeniably larger populace.</span>
I think its:
-Pressure
-Sand
-Gravel
(not sure on the gravel bit)
Where's the choices? Can't answer without them...