Answer:
The Correct Answer is both supported the vegetation which create sufficient environment where various kind of insects and other organisms could survive.
Explanation:
The most important specie of the oyamel fir trees in Mexico is the Monarch butterflies.
Monarch butterfly overwintering settlements are observed in Mexico's oyamel fir forest, an uncommon mountain habitat.
The combination of the oyamel fir forest in Mexico is greatly shortened. It is presented in black on the vegetation outline of Mexico.
Oyamel firs are limited to high mountain massifs, which are rare and far among.
The river valley of Wyoming and Montana related to the oyamel fir tree in Mexico because both supported the vegetation for the survival of various insects such as Monarch butterflies etc.