Compléter Jobs in Nature SummaryVersion en ligne Copy and complete with these words: par Javier Grande 1 activity fishing crop Ploughing inactive irrigated livestock farming primary farming animal The population can be divided into active and . The active population works in three economic sectors : , secondary and tertiary . Jobs in the primary sector are , and . . Crop farming is the of growing plants to obtain different products . Crops are classified into dry crops and crops . The most important stages in the process of farming are : , sowing and harvesting . Animal farming is farming . Livestock farming can be extensive or intensive .