The best way to begin a National Forest adventure is to stop at an Information Station or a Visitors' Center. The former provides maps, brochures and directions, while, in addition to these services, the latter offers talks, films and exhibits. These professional services are free, contribute to the public's safe enjoyment of the forests, and play an important role in the development and preservation of our forest resources.

Q. Underline the words which support the correct answer for the first question.