Final answer:
The storage of raw materials is classified as a non-value-added activity, which does not enhance the product's market value in the manufacturing process.
Step-by-step explanation:
The storage of raw materials is considered a non-value-added activity in the context of manufacturing and economic activity classification. A non-value-added activity refers to processes that consume resources or time but do not directly contribute to the product’s value from the customer's perspective.
In terms of economic sector activities, primary economic sector activities revolve around the extraction and production of raw materials, whereas secondary economic sector activities focus on the processing of those raw materials through manufacturing, where the transformation contributes to value addition.
Storage does not alter or enhance the product in a way that increases its market value; thus, it is not considered a value-added activity.