1. How to prepare for a trip to Yosemite describes how two friends get ready for a camping trip.

2. Includes the land, water, and air where people, plants, and animals live. To protect the environment, everyone should conserve our natural resources.”

3. In a desert ecosystem, many small animals live underground. Is part of the environment. It is a community that includes the plants, animals, and insects in a specific area.

4. During the fall, the leaves in the alpine forest are bright yellow. Relating to the Alps and their inhabitants; "Alpine countries, Switzerland, Italy, France, and Germany"

5. After a rainstorm, a landslide uprooted trees. Landslides take place when dirt, pebbles, rocks and boulders slide down a slope together. Sometimes these landslides are small, and hardly noticeable. Other times however, they can be substantial, involving the entire side of a mountain.

6. “Conservation is essential for protecting the environment.” The preservation and careful management of the environment and of natural resources.

7. “My grandfather built a cabin in a secluded grove.” (of a place) not seen or visited by many people; sheltered and private.

8. providing or relating to views of impressive or beautiful natural scenery. “We went on a scenic drive through the mountains.”

9. Precise, exact. “The party is this afternoon, but we are not sure of the specific time.”

10. Traits, characteristics. “Ralph decided to buy that bike because he likes the features that it has.”