apple pie
List four substances you would expect to find in a dried sample of lettuce.
Lettuce is one of the best vegetable sources of silicon and iron, it also contains copper.
No
The likely answer is watermelon. However, there are commercially available dried watermelon chips, and these can be made at home (although they may have limited shelf life). Pickled watermelon rind is also sold in some areas.
There are several instances of food that cannot be dried, or dehydrated. Some example include foods with a high oil content, such as avocados. Lettuce and eggas are two other items that do not dry very well.
Dried blood can contain microorganisms. However, these organisms that can be found in dried blood are most often no longer living.
Ecoli or salmonella
lipid
All of the substances found in the Periodic Table are considered as elements. None others are.
Salt
Warm temperatures allow certain bacteria to multiply very fast. It depends what kind of bacteria are on the iceberg lettuce as to whether or not it would be dangerous. If the lettuce has been contaminated with pathogens, it could be dangerous whether or not it has been refrigerated.
The substances having the most potential are CFC's. They can be found as coolant in various areas.