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.

Fact 1: the force of water against the seed coat causes a root to emerge from a seed. 
Fact 2: Germination depends on the seed coat.
the force of water causes germination with the emergence of a root.

Fact 1: Nephrons are the structural and functional units of the kidneys. 
Fact 2: Finally, the fluid in the nephron reaches a collecting duct .
fluid in the kidneys collect into ducts.

Fact 1: a airplane is used for moving people across bodies of water. 
Fact 2: Airplanes Air travel is the quickest way to travel and is probably best for long distances.

Air travel is used for moving people across bodies of water.

