a valley that is deep and has very steep sides, through which a river is flowing usually
渓谷
a mound or ridge of sand that is typically formed by the wind, often found in deserts, coastal areas, or other regions with significant wind activity
砂丘
an area containing still water that is comparatively smaller than a lake, particularly one that is made artificially
池
a large body of land that is partially surrounded by water but is attached to a larger area of land
半島
the distance of a point east or west of the meridian at Greenwich that is measured in degrees
経度
the distance of a point north or south of the equator that is measured in degrees
緯度
each of the two parallel and imaginary lines around the earth that is 23°26ʹ south or north of the equator
回帰線
a hypothetical line around the Earth that divides it into Northern and Southern hemispheres
赤道
an imaginary circle around 66.5 degrees south of the equator, marking the southernmost point where the sun stays above or below the horizon for 24 hours during the respective solstices
南極圏
a collection of maps, charts, and geographical information typically organized by region or topic
地図
a landform at a river's mouth, shaped by sediment deposition and characterized by distributaries
デルタ