Answer:
Hey!
Your definitions are below!!
Explanation:
Coagulation: Is the reaction (often with heat...) or process of a liquid-based substance, especially eggs white/yolk and blood, changing "state" to a solid or semi-solid state.
Denaturation: Is the common alteration of proteins in their shape because some type of externally applied stress upon it... (by applying heat, acid or alkali), because of this the compound is no longer able to do its job.
Aeration: Is the introduction/exposure of air onto the a material/substance.
Cross Contamination: Is an unintentional process by which bacteria or other microorganisms (viruses/dust etc) are transferred from one object to another, with harmful effects such as food poisoning...
HOPE THIS HELPS!!