(a) Draw an outline map of Nigeria. On the map, show and name:
(i) one area noted for the mining of any three of the following: crude oil; limestone; columbite; iron ore;
(ii) one major town in any three of the areas shown in (a)(i) above.
(b) Outline five ways in which crude oil contributes to the economic development of Nigeria.

b)
1. Revenue generation: Crude oil exports are a primary source of revenue for Nigeria. The sale of crude oil on the international market generates significant foreign exchange earnings, which contribute to the country's GDP and government revenue through taxes, royalties, and other levies.
2. Employment opportunities: The oil and gas industry in Nigeria provides employment opportunities across various sectors, including exploration, production, refining, transportation, and supporting services. These jobs range from skilled engineering and technical roles to manual labor, contributing to livelihoods and economic development.
3. Investment attraction: Nigeria's vast crude oil reserves attract foreign investment in the oil and gas sector, including exploration and production activities, infrastructure development, and technology transfer. Foreign direct investment (FDI) in the oil industry stimulates economic growth, creates business opportunities, and enhances the country's industrial capacity.
4. Infrastructure development: The revenue generated from crude oil exports enables investments in infrastructure development, including roads, bridges, ports, and power generation facilities. These infrastructure projects support economic activities in other sectors, improve connectivity, and enhance the overall quality of life for Nigerians.
5. Industrial growth and diversification: Crude oil serves as a feedstock for Nigeria's downstream oil and gas industry, including refineries, petrochemical plants, and other industrial facilities. The development of downstream industries promotes industrial growth, value addition, and economic diversification, reducing the country's reliance on imported petroleum products and creating opportunities for downstream businesses and entrepreneurship.