Relier Pairs Our Nation's GeographyVersion en ligne Matching review Chapter 1 par Jeannine Gryn 1 This describes states next to each other 2 This is how people change the land to improve movement of goods and people 3 A region that has similar landform features 4 Earth's seven largest landmasses 5 It is an area in which many features are similar 6 An area of flat or rolling land covered mostly by grasses 7 The gradual wearing away of the Earth's surface 8 This is the number of people in an area 9 This is the relationship between Earth and the sun that causes the seasons 10 The surroundings in which people, plants, and animals live 11 The number of contiguous states 12 It is where a place is compared to other places 13 This is how the climate of the Southwest differs from the climate of the Northeast 14 This is the reason why people modified rivers and streams 15 The kind of weather a place has over a long time 16 A group of connected mountains 17 This natural process has worn down the Appalachian Mountains forty-eight environment by digging channels erosion climate It is hotter and drier continents contiguous population the change in the Earth's tilt toward the sun erosion prairie landform region region mountain range relative location water was used for drinking and generating electricity