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: Experiments are often done in a lab. 
Fact 2: Experiments are central to the sciences.
answer:
labs are where science is done.


question:
Fact 1: the gravitational pull of the Moon on Earth 's oceans causes the tides. 
Fact 2: The lower is the tide, the better is the wave.
answer:
gravitational pull of the moon causes waves.


question:
Fact 1: habitat destruction causes animals to move to find shelter in another habitat. 
Fact 2: Mammals are a class of animal.
answer:

When a mammal's habitat is destructed, it causes the mammal to move to find shelter in another habitat.