A hole on the side of a mountain
A natural flow of fresh water across the land
A raised part of the earth's surface
A large area covered with trees
An area covered with sand or rocks with very little rain
A large area of water surrounded by land
Water dropping from a higher to a lower point
A tropical forest where plants grow very closely
a piece of land surrounded by water
A mountain with a large hole on top through which lava, gases, steam, and dust are or have been forced out
jungle
cave
forest
waterfall
volcano
lake
island
desert
mountain
river