20 POINTSSS!! How did the rock of the Rocky Mountains form?

It's only 5 but whatever, they formed through millions of years of erosion

The Rocky Mountains formed 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began sliding underneath the North American plate.

I hope this helps! -connie :}

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.