It is an area in which many features are similar
This describes states next to each other
This is how the climate of the Southwest differs from the climate of the Northeast
The kind of weather a place has over a long time
Earth's seven largest landmasses
The number of contiguous states
The surroundings in which people, plants, and animals live
An area of flat or rolling land covered mostly by grasses
It is where a place is compared to other places
This is the number of people in an area
This is how people change the land to improve movement of goods and people
The gradual wearing away of the Earth's surface
A group of connected mountains
This natural process has worn down the Appalachian Mountains
This is the reason why people modified rivers and streams
A region that has similar landform features
This is the relationship between Earth and the sun that causes the seasons
by digging channels
environment
It is hotter and drier
erosion
forty-eight
water was used for drinking and generating electricity
population
relative location
prairie
continents
region
erosion
mountain range
the change in the Earth's tilt toward the sun
landform region
climate
contiguous
