a person who studies living things
NATURALIST
a group of organisms that can reproduce with one another in nature and reproduce
SPECIES
side of a mountain, land that goes up or down at an angle
SLOPE
height above Earth’s surface
ALTITUDE
huge mass of ice that moves very slowly down a mountain or over a land area
GLACIER
save, to keep from harm or change; protect
PRESERVE
a place where water is collected and stored for use
RESERVOIR
place that is in a natural state
WILDERNESS
Series of layers or deposits of the same kind of rock or minerals.
FORMATIONS
amazing, able to impress.
IMPRESSIVE