Why is revolution called agricultural revolution?

Answer 1

Revolution is a fast change, as opposed to evolution, a slow change. When man discovered agriculture, the hunter-gatherer lifestyle had lasted for hundreds of thousands of years. Archaeologists find stone tools made over tens of centuries that didn't change for all that time.

But when someone discovered that you could collect seeds, drop them on the ground, and they would grow, things changed very rapidly. Not in a single lifetime but perhaps a century or so. Within a century the yield per acre of barley had grown more than 10x. The discovery led to enormous changes in lifestyle--homes, clothes, food, even things like cities, written language, music, etc. Revolutions today are like two weeks, this one was a lot longer, but in context it as a revolution.

Answer 2

It was the first time humans had adapted to their environment.