A 1963 work of anthropology argues that a form of agriculture making use of this stuff developed alongside the cultivation of rice paddies in Indonesia.
A 1963 work of anthropology argues that a form of agriculture making use of this stuff developed alongside the cultivation of rice paddies in Indonesia. Rhys Jones described an Aboriginal Australian practice in which "sticks" of this stuff were used by farmers to change the ecological composition of their landscape. In Clifford Geertz's  Agricultural Involution , a form of agriculture making use of this stuff called (*)   swidden  is discussed; that usage of this stuff involved shifting cultivation of different fields and was sometimes preceded by so-called "slashing." The discoloration of rocks suggest that flint has been used to help create this stuff in hearths in caves during the Paleolithic. For 10 points, name this source of warmth that was first used by  Homo erectus .
A 1963 work of anthropology argues that a form of agriculture making use of this stuff developed alongside the cultivation of rice paddies in Indonesia.
fire  [or obvious equivalents] 