| A | B |
|---|
| glacier | great mass of ice that moves slowly down a mountain or valley |
| impressive | able to impress the mind, feelings, or conscience |
| naturalist | person who studies nature |
| preserve | to keep from harm or change |
| slopes | land that goes down at an angle |
| species | set of related things that share certain characteristics |
| wilderness | wild region with few or no people living in it |
| altitudes | heights above the Earth's surface |
| formations | things that are formed |
| reservoir | place where water is collected and stored for use |
| main idea | the most important point about a topic |
