Geography

large pipes that carry water over long distances

a dry treeless plain that sprouts grasses and mosses only in the summer when top layer of soil thaws

a place where buyers and sellers deal for grain

tall buildings equipped with machinery for loading, cleaning, mixing, and storing grain

the average number of days between the last frost of spring and the first frost of fall

the dark-colored organic material that results from ongoing soil building

the band of southern states from the carolinas to southern california is: _

an imaginary line between the Appalachian Mountains and the Atlantic coastal plains

marshy inlets of lakes and rivers of Louisiana

tropical trees that grow in swampy ground along coastal areas

a very large city