TASK DEFINITION: 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.
PROBLEM: Fact 1: the Himalayas were formed by rock folding. 
Fact 2: Movements in the earth's crust have folded and cracked the older rocks.

SOLUTION: the Himalayas were formed from older rock.

PROBLEM: Fact 1: Blood type is important for medical reasons. 
Fact 2: Transplants are medical miracles.

SOLUTION: Blood type is important for Transplants.

PROBLEM: Fact 1: Fingernails prevent injury by forming protective plates over the ends of the fingers. 
Fact 2: By definition, a nail is a hard, curved plate on the fingers and toes composed of keratin.

SOLUTION:
A hard, curved plate of keratin prevents injury to the ends of extremities.