Correct Option
The correct option is Steel : Smelting (Process)
Explanation
An industrial system consists of inputs, processes, and outputs. Inputs include raw materials, labour, and costs of land, transport, and power. Processes include a wide range of activities that convert the raw material into finished products. Outputs are the end products and the income earned from them.
Option Analysis
- (a) Incorrect: In the textile industry, Ginning is a process involving the separation of seeds from cotton fibers. The input would be the raw cotton itself.
- (b) Correct: In the iron and steel industry, Smelting is a core process. It involves extracting metal from its ore by heating it beyond the melting point, typically in a blast furnace.
- (c) Incorrect: Transport cost is classified under inputs or factors of location (infrastructure required to move raw materials and finished goods). It is not a manufacturing process like spinning or weaving.
- (d) Incorrect: Refining is a process used to purify the metal after smelting. The inputs for the steel industry are raw materials such as iron ore, coking coal, and limestone.
Key Takeaway: In an industrial system, raw materials and infrastructure costs are inputs, whereas activities transforming these materials (e.g., smelting, ginning, spinning) are processes.