A dehydration reaction is a chemical reaction that occurs between two compounds in which water is one of the end products.
When two monomers may react to one another and an H or hydrogen atom of one monomer binds to OH or hydroxyl group of another monomer to make a dimer. In this reaction the end products that form are water and a dimer, it is an example of the dehydration reaction.
Water will be a product in a dehydration reaction. For example, when copper sulfate hydrate is heated, the water of crystallization vaporizes, leaving behind copper sulfate anhydrate.
The darker moths would be harder for the bird to see due to the amount of soot on the trees. The darker moth population would thrive and continue to grow, while the lighter colored moth population would decrease.
