Dear Student
Hunters and Gatherers used to move from one place to another because of following reasons
1. Living at one place will results in to the consumption of all available food, so the people move from places to places.
2. Many of the rivers are perennial and some are seasonal and lives found near the water bodies for their survival. In the dry season people move in search of water.
3. People move seasonally because plants and trees bore fruits in different season.
4. Animals moves from one place to another in search of food and because of hunting animals, people moves one place to other.
Regards