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: Some species of reptiles can go several weeks between meals. 
Fact 2: Snakes are legless reptiles.
some snakes can go several weeks between meals.

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

Fact 1: Precipitation falls on the windward side of the mountain range. 
Fact 2: Moist air is forced up the mountains bringing both cloud and precipitation to the windward side.

moist air falls on the windward side of a mountain.