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: when the body is hot , sweat is produced to cool the body. 
Fact 2: The sweat evaporates from your skin, cooling it.
answer:
Your body uses evaporation to cool it down.


question:
Fact 1: Bacteria may spread directly from one person to another. 
Fact 2: People can be infected or killed by the bacteria.
answer:
People can spread death from one person to another.


question:
Fact 1: if two balanced forces act on an object in opposite directions then that object will remain stationary. 
Fact 2: Opposites also hold each other in balance and exert mutual control.
answer:

balanced forces exert mutually on an object making it remain stationary.