Fact 1: Dehydrating food is used for preserving food. Fact 2: Dehydration is the removal of water. Given the two facts above, what can be removed to preserve food?

Options: 1). water; 2). nutrients; 3). toxins; 4). salt; 5). A virus; 6). sugar; 7). leeches; 8). peat;
Answer:
1).