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: Some species of reptiles can go several weeks between meals. 
Fact 2: Snakes are cold-blooded reptiles.
answer:
Some species of snakes can go several weeks between meals.


question:
Fact 1: Coral reefs provide food and shelter to many ocean organisms. 
Fact 2: Organisms or living beings are literally things that are alive.
answer:
Coral reefs provide food and shelter to many ocean living beings.


question:
Fact 1: gases released during the use of fossil fuels causes global warming. 
Fact 2: Global warming is a global environmental problem.
answer:

gases released during the use of fossil fuels cause a global environmental problem.