the distance of a point east or west of the meridian at Greenwich that is measured in degrees

経度 (けいど), ロングイチュード

a smaller part of a river that is separated from the main and larger part

支流(しりゅう), 分岐(ぶんき)

a layer of matter that has been accumulated, particularly by a body of water

堆積物 (たいせきぶつ), 堆積 (たいせき)

a structure built out into the water so that people can get on and off boats or ships

埠頭 (ふとう), ドック

the line where the sky and earth seem to come in contact with each other

地平線 (ちへいせん), 水平線 (すいへいせん)

a large body of land that is partially surrounded by water but is attached to a larger area of land

半島, ペニンシュラ

the most northern or most southern points of the earth that are joined by its axis of rotation

北極, 南極

an area containing still water that is comparatively smaller than a lake, particularly one that is made artificially

池(いけ), 沼(ぬま)

a lake, either natural or artificial, from which water is supplied to houses

貯水池(ちょすいち), ダム(水源)

the expansive flat Arctic regions, of North America, Asia, and Europe, in which no trees grow and the soil is always frozen

ツンドラ, tundra(ツンドラ)

(of natural forces such as wind, water, or other environmental factors) to gradually wear away or diminish the surface of a material

侵食する (しんしょくする), 浸食する (しんしょくする)

(of land or a climate) very dry because of not having enough or any rain

乾燥した (かんそうした), 不毛な (ふもうな)

