instruction:
Combine the given two facts to write a concluding fact. Note that there should be some parts of the first and second facts that are not mentioned in this conclusion fact. Your combined fact should be the result of a chain between the two facts. Chains form when two facts connect together to produce a concluding fact. An example of a chain is: "pesticides cause pollution" (fact1) + "pollution can harm animals" (fact2) → "pesticides can harm animals" (conclusion fact). Parts of the concluding fact overlap with the first and the second fact. To construct such a  concluding fact, a useful way is to borrow the subject from one fact and the ending conclusions from another fact.
question:
Fact 1: Hair helps to insulate and protect the body. 
Fact 2: All mammals have hair.
answer:
most mammals have insulation that also protects the body.


question:
Fact 1: irradiating food can be used to kill existing microorganisms in the food. 
Fact 2: Food irradiation is blazingly high-tech.
answer:
a blazingly high-tech method can be used to kill existing microorganisms in the food.


question:
Fact 1: a rainbow is formed by refraction of light by separating light into all different colors. 
Fact 2: Light passing through a prism is refracted or divided into the colors of the spectrum.
answer:

A rainbow is formed by passing light through a prism.


