Discuss five contributions made by agriculture to the industrial development of Nigeria.

Agriculture is closely linked to industry, and in Nigeria it has aided industrial development in several concrete ways. Five contributions are:

1. Supply of raw materials. Agriculture provides the primary inputs that manufacturing industries process, for example cotton for textile mills, cocoa for beverage and confectionery plants, palm produce for oil and soap factories, and groundnut for oil mills. Without these, agro-based industries could not operate.
2. Provision of food for the industrial workforce. A steady, cheap food supply feeds urban factory workers, keeps wages and production costs down and makes industrial labour available and productive.
3. Provision of a market for industrial goods. Farmers buy manufactured inputs such as fertilisers, tractors, pesticides, cutlasses and processing machinery, creating demand that stimulates industrial output.
4. Source of capital and foreign exchange. Earnings from the export of cash crops provide savings and foreign exchange used to import industrial machinery and to finance industrial investment; agricultural taxes and marketing-board surpluses have also funded industry.
5. Supply of labour. As farming becomes more productive, surplus labour is released from the land to work in the growing industrial sector.

Examination reminder: organise the answer around the four classic linkages - raw materials, food, market and capital/labour - and give a Nigerian example for each to gain the illustration marks.