A. A machine used for cutting the matured crop - Harvester. (0.5 marks)
B. A process of separating the grain from chaff - Winnowing. (0.5 marks)
C. Keeping crop grains for a long time under proper conditions - Storage. (0.5 marks)
D. Rearing of animals on a large scale to obtain food products - Animal Husbandry. (0.5 marks)