A call stack is used for several related purposes, but the main reason for having one is to keep track of the point to which each active subroutine should return control when it finishes executing.
Though they are commonly mistaken for rodents due to the similarities they share with ground squirrels and marmots, moles are actually mammals. Eastern Mole. The most common mole in the United States is the eastern mole. Adults are typically about half a foot long with sleek, dark fur, long snouts, wide hands, and obscured eyes.
1 Gophers and woodchucks are types of rodents. They are abundant in the United States.  Gophers and woodchucks are pesky in their own ways. Gophers love to burrow in lawns and golf courses while woodchucks love to chew on your power lines and even automobiles.