With reference to the sectors of the Indian economy, consider the following pairs: Economic activity - Sector: 1. Storage of agricultural produce - Secondary; 2. Dairy farm - Primary; 3. Mineral exploration - Tertiary; 4. Weaving cloth - Secondary. How many of the pairs given above are correctly matched?

Only two pairs are correctly matched (Dairy farm - Primary, and Weaving cloth - Secondary). Storage of agricultural produce is a tertiary (services) sector activity, not secondary, as it involves warehousing/services rather than manufacturing. Dairy farming is correctly classified as primary sector (animal husbandry, allied to agriculture). Mineral exploration is a primary sector activity (extracting/identifying natural resources), not tertiary. Weaving cloth is correctly placed in the secondary sector as it transforms raw material (yarn) into finished products through manufacturing.