The hunter and gatherers existed around 8000 B.C.E, they got their food by hunting animals and searching for nuts, berries and etc. Their shelter was caves. This scene shows what hunter gatherers would do, hunt for food and cook. Hunter and gatherers were nomads, caves are a non permanent housing for them.
The agriculture revolution began when people began to start to farm and grow food. They also started to raise animals for their meat, milk etc. People were relying on their farms for food supply. In the agriculture revolution people started to settle down in one place they now have a permanent house. They built better tools and built communities.
life improved by creating a stable food supply, making permanent shelters and establish communities.