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| underwater version of alluvial fams, soil deposited on the continental slope, the deepest part of the ocean floor. |
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| island of coral that partially or completely surrounds a lagoon |
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| a group or chain of islands |
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| soil deposited at the base of mountains, caused by flowing water |
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| a large or small depression in the surface of the land or the ocean floor. |
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| an isolated hill or mountain with steep sides, usually has a smaller summit than a mesa |
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| a shallow submarine plain of varying width forming a border to a continent and typically ending in a steep slope to oceanic abyss |
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| a volcanic crater that has a diameter much larger than the vent, formed by collapse of the central part of the volcano or eruption |
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| a deep valley with steep sides often with a stream or river flowing through it, a gorge |
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| a point or extension of land jutting out into water like a peninsula, only smaller |
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| a deep crevice or fissure as in a glacier or the earth |
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| land formed at the mouth of a river by sediment deposits |
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| an arid barren land usually with less than 10 inches of precipitation |
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| an elongate or oval hill of glacial drift |
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| a long, precipitous, clifflike ridge of land, rock, or the like commonly formed by faulting or fracturing of the earth's crust |
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| a serpentine ridge of gravelly and sandy drift, formed by glacial meltwater |
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| a long narrow arm of the sea bordered by steep cliffs and usually formed by glacial erosion |
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Definition
| a hot spring that intermittently sends up fountainlike jets of water and steam into the air |
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| a large body of ice moving slowly down a slope or valley or spreading outward on a land surface |
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| land completely surrounded by water |
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| a narrow neck of land that connects two larger land masses |
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| a deep bowl-shaped depression in glacial drift |
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| a broad flat-topped elevation with cliff like sides |
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| a ridge, mound, or irregular mass of unstratified glacial drift, chiefly boulders, gravel, sand, and clay |
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| a natural elevation of land rising more or less abruptly to a summit and usually an elevation of 1000 feet or more |
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| a portion of land nearly surrounded by water and connected with a larger body. |
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| a usually extensive land area having a relatively level surface that rises sharply above adjacent land on at least 1 side |
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| an area of land not significantly higher than adjacent areas and with relatively minor differences in elevation, commonly less than 500 ft within the area |
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| a chain of mountains forming a single system |
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| an elongated crevice formed by the depression of a block of the earth's crust between two faults or groups of faults of approximately parallel strike |
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| the highest point; peak, the topmost level attainable |
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| an elongated depression of the earth's surface usually between hills or mountains |
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| a vent in the crust of the earth or another planet from which molten or hot rock and steam issue |
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| an inlet of the sea or other small body of water usually smaller than a gulf |
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| a poorly drained usually acid rich area in accumulated plant material |
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| a descent of water over a steep surface as in a waterfall or series of rapids |
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| a navigable route between two bodies of water, or a wide strait as between a continent and and island |
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| the path over which something moves or extends |
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| a water passage where the tide meets a river current: an arm of the sea at the lower end of a river |
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| a spring that throws forth intermittent jets of heated water and steam |
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| part of an ocean or a sea that extends into land, usually large |
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| extremely large body of salt water |
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| a smaller body of water that connects two largers bodies of water |
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| tract of wet, spongy land, often having a growth of certain types of trees and other vegetation |
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| a stream or river that flows into a larger flowing body of water |
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| the beginning of a stream or river |
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| one of the largest land masses on earth |
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| a type of wetland subject to frequent or constant flooding, usually shallow and containing grasses |
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