Question

classify industries on the basis of their main role how are they different from each other​

Answer 1

Answer:

basic industries supply their raw materials and products to manufacture other goods , for example - iron and steel industry , aluminium smelting etc.. consumer industries produce goods for the direct use by the consumers , for example - toothpaste , sugar , paper etc..

Answer 2

Answer:

Basic or key industries: These industries supply their product or raw materials to manufacture other goods; e.g., iron and steel, copper smelting and aluminium smelting