This document discusses various food preservation methods and asks the reader to identify which method is used for specific preserved foods. It also asks how food preservation can help family income. The preservation methods mentioned are drying, refrigeration, smoking, pasteurization, canning, salting, sugaring, and pickling. The foods listed for identification are salted egg, tuyo, strawberry jam, ham, and pickled mango. Food preservation helps family income by allowing food to be stored for longer periods of time and sold when market prices are higher.