How did agriculture change the world?
Agriculture changed the world in such a way that it's considered the turning point of human history.
It all started about 10,000 years ago when people decided to change from a nomadic lifestyle (hunter-gatherers) to producers of food, hence agriculture.
In addition, this transition in their lifestyle enabled them to have more time to do other things since they no longer had to go from place to place searching for food (they could now built permanent homes and villages.)
Moreover, all this abundant time allowed people to start innovations and expand their knowledge by studying the life around them and the phenomenon in the sky.
To add on, as this settlements developed and populations grew, new social classes emerged: warriors and priests. The rationale behind this included the fact that warriors were needed to defend the villages against any outside force. Also, a separate priesthood emerged to conduct religious rituals.
Therefore, as the time passed, civilizations began to flourish (civilization- an advanced form of human culture in which people build cities, have complex social institutions, use some form of writing, and are skilled in science and technology.)
In conclusion, you can say that in a way, agriculture was like a main catalyst for the development of the human civilization.