Oceania Layers - Page 5

Show a seasonally flooded, poorly drained wetland with more woody plants than a marsh and better drainage than a bog.

Show a soft, poorly drained wetland that is characterized by the growth of only non-woody plants (for example: grasses) and often forms a transition region between a waterbody and land.

Show a hill or mountain situated over an opening or openings in the Earth's crust through which lava, cinders, steam, and/or gases, are or have been expelled.

Show a region of the land that is homogeneous with respect to a soil characteristic.

Shows a barrier constructed to hold back water and raise its level to form a reservoir or to prevent flooding.

Show shallow pools, normally man-made, used for the natural evaporation of water for the collection of salt.

Show a substantial lake-like body of water impounded by a dam.

Show a large body of water entirely surrounded by land.

Show an assemblage of cages, nets, rafts and floats or posts where fish, including shellfish, are artificially cultivated.

Show a tract for the treatment of water that consists of a bed of material where water is aerated or filtered.