How did technological advances in agriculture allow early civilizations to develop and sustain themselves over long periods of time?

Question

How did technological advances in agriculture allow early civilizations to develop and sustain themselves over long periods of time?
PLEEEEEASE HELP!!!!!!!!
I AM STUMPED!!!!!

Ms. Sue · Answer

When people didn't have to spend all of their time obtaining food, they had time and energy for arts, literature, and government.

Lilac Lilly Rose · Answer

Hi Ms. Sue. Sorry to bother you but can you plleeeeaaase put ore information to that sentence?

Ms. Sue · Answer

http://www.khanacademy.org/partner-content/big-history-project/agriculture-civilization

Anonymous · Answer

Technological advances in agricultural allow early civilizations to develop and sustain themselves over long periods of time by providing new opportunities for growth in the communities. The advances allow the communities to feed more people and people sustain themselves by growing their own crops and feeding themselves.