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.

[Q]: Fact 1: adding salt to a liquid decreases the melting point of that liquid. 
Fact 2: A low melting point will lower the heat needed.
[A]: adding salt to a liquid lowers the heat needed to melt it.


[Q]: Fact 1: Cells have multiple repair mechanisms to fix mutations in DNA. 
Fact 2: And if the damaged DNA is duplicated, it causes mutation.
[A]: Cells have multiple repair mechanisms to fix damaged DNA duplication.


[Q]: Fact 1: if a plant requires less water then that plant will survive in a drought. 
Fact 2: Shrub beds and ground covers require less water and provide more variety to the landscape.
[A]:
Shrub beds need less water and will survive in a drought.