| A | B |
| archipelago | a large group of islands in a sea opr ocean |
| arroyo | a stream bed in a deserty regiom. it carries watyer only where ther is rainfall |
| atoll | a coral island or islands enclosing a lagoon |
| bayou | a minor or secondary stream in the lower mississsippi river basin |
| bluff | a high, styeep bank |
| breakwater | a structure which protects a harbor or beach from the force of water |
| butte | an isolated, steep-sided hill found in arid lands smaller than a mesa |
| cape | a peice of land extending into the sea beyond the rest of the shoreline |
| coastal plain | an exstensive low-lyijng coastal area with a relatively flat surface |
| delta | a mass of mud or silt deposited b a stream in the relatively quit water at it's mouth |
| dike | a bank of eath or other materialconstructed to prvent water from flooding an area |
| divide | the higher ground which separates two areas of drainage |
| fiord | a glaciated valley that has been partly filled by an arm of the sea |
| flood plain | a plain, bordering a river, which is composed alluvium deposited by the river when it overflows it's banks |
| foothills | hils which lie at the foot of higher hills or mountains |
| gap | a narrow valley through a ranmge of hills or mountains |
| gully | a channel worn in the land by running water , especially during heavy rains |
| irrigated farm land | land recieving water for plants in addition to the rainfall |
| isthmus | a narrow strip of land joining two large land masses or joining a penisula to the mainland |
| levee | the bank of a river whoch has been built up by the deposiytion of silt when the river overflows. an artificail levee is a structure built on top of a natural levee to prvent the river from overflowing |