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.

[EX Q]: Fact 1: Chemical bonds form when substances react with one another. 
Fact 2: All substances are composed of molecules.
[EX A]: Chemical bonds form when molecules react with one another.

[EX Q]: Fact 1: Grasses supply most of the food consumed by people worldwide. 
Fact 2: Wheat is a grass-type plant.
[EX A]: wheat is a plant that is consumed by people worldwide.

[EX Q]: Fact 1: Bioterrorism is another potential threat in the environment. 
Fact 2: Antibiotics and vaccines are being stockpiled as Britain gears up to meet the bioterrorism threat.
[EX A]:
Antibiotics and vaccines are being stockpiled against another potential threat in the environment.