Answer the questions. Write D (drying), S (salting), F (freezing) or C (canning). Which method of food preservation: 1) takes the water out of the food? 2) is the newest way to preserve food? 3) works because air can't reach the food? 4) only works in hot, sunny places? 5) was particularly popular in America? 6) is still a popular way to preserve fish in Portugal? 7) is the oldest? 8) was invented in a very cold place?