Plantation of tobacco and sugar cane
Iron tools were used for agriculture. Larger communities pushed into the Ganges river . They used iron tools to cultivate rice.
Answer:
The answer is Shifting cultivation
Explanation:
Shifting cultivation is used to describe the agriculture method that leads to the use of a section of land until the ground loses its nutriment and become unfit for growing crops. It is then abandoned for another section and let to lay fallow or uncultivated until the weeds and other natural plants grow by themselves.
