The designated zero degree line for latitude

an imaginary line that divides the earth north and south

the exact place on earth where a geographic feature such as a city is found

the set of imaginary lines that run parallel of the equator used to help locate places

two-dimensional representation of parts of the earth's surface

a person that makes maps

the term for weather conditions at a particular location over a period of time

the shortest day of the year

the longest day of the year

the flat grassy mostly treeless plains in a tropical grassland region

three-dimensional representation of the earth

the subsoil is constantly frozen

a way of showing the curved surface of the earth on a flat map

flat treeless land forming a ring around the Arctic Ocean

the condition of the atmosphere at a particular location and time

the ecosystem of a region

the set of imaginary lines that go around the earth over the poles to find to location

an interdependent community of plants and animals

the transfer of heat in the atmosphere by upward motion of air