Question

how did the use of iron revolutionise is agriculture

Answer 1

Iron is very useful in agriculture because iron provides most of agricultural tools, without these tools agriculture is not possible at present time. Some iron tools are axes, hooksetc.

Answer 2

The use of iron revolutionised the agriculture in following ways-
-The use of iron tools,the hoe, helped the farmers to clear the land more quickly and easily than they could with the earlier tools.
-The ability to forge iron changes daily life and warfare.