Answer:
- animals... crops
- surplus
Explanation:
The Neolithic Revolution is the period in human history when the humans started to domesticate wild crops and wild animals, thus gradually turning them into more productive and useful domesticated crops and animals. This led to the development of agriculture and farming of animals, which in turn resulted in large scale production of food that was actually creating surplus. The surplus food in turn created conditions for more people to be sustained so the global population started to grow.
