In the context of the Indian economy, we categorize activities into three sectors: primary, secondary, and tertiary. The correct pairs among the ones listed are the dairy farm (primary sector) and weaving cloth (secondary sector). The storage of agricultural produce is actually part of the tertiary sector as it involves services rather than the direct extraction or manufacturing of goods. Similarly, mineral exploration primarily falls under the primary sector as it deals with the extraction of natural resources. Therefore, two pairs are correctly matched, illustrating the importance of understanding sectoral classification relevant for agricultural and industrial activities in the UPSC syllabus.