Lake

A lake is a large body of water surrounded by land. Lakes are inland.

River

A river is a large natural stream of water flowing in a channel to the sea, lake, ocean, another river, or another such stream.

Desert

A desert is a region that receives very low precipitation. It is arid with little or no vegetation.

Hill

A hill is a land mass that rises above its surroundings. It is not as high as a mountain.

Mountain

A mountain is a land mass that rises well above its surroundings. It is higher than a hill.

Longitude

Longitude is a geographic coordinate that indicates an east-west position of a point on the Earth's surface.

Latitude

Latitude is a geographic coordinate that indicates a north-south position of a point on the Earth's surface.