What type of industry manufactures products from raw materials?

The correct answer is the secondary industry, which plays a crucial role in the economy by transforming raw materials into finished goods. This sector includes manufacturing processes that take place in factories where raw materials—such as metals, wood, textiles, and chemicals—are altered to create products that are ready for consumer use or further industrial processes. Examples of activities in this industry include automotive manufacturing, construction, and food processing.

Understanding the distinction between this and other types of industries helps clarify the economic structure. The primary industry involves extracting and harvesting natural resources, such as agriculture, fishing, and mining, but it does not involve the manufacturing of products. The quinary industry, on the other hand, focuses on knowledge-based services like education, healthcare, and scientific research, rather than the production of physical goods. The term "industry" itself is too broad and does not specify the nature of the activity, making secondary industry the most accurate and specific answer in this context.