Unit 2 Chemical or Organic Farming?Unit 2 Chemical or Organic Farming?Warming upWarming upWarming upWarming upWhat do farmers need to grow food?They need+Warming upWarming upFertilizers?Warming upWarming upChemical fertilizersNatural fertilizers_ farming_ farmingchemicalorganicChemical or Organic Farming?Chemical or Organic Farming?Chemical or Organic Farming?Chemical or Organic Farming?Pre-readingPre-readingChemical or Organic Farming?Predict what we will know from the passage.Well know.Chemica
