siltation
91Bioluminescence — Flying and glowing firefly, a.k.a. Photinus pyralis …
92Nekton — refers to the aggregate of actively swimming aquatic organisms in a body of water (usually oceans or lakes) able to move independently of water currents. Nekton are contrasted with plankton which refers to the aggregate of passively floating,… …
93Ditch — For other uses, see Ditch (disambiguation). A well maintained ditch in the Netherlands …
94Groundwater — Shipot, a common source of drinking water in a Ukrainian village. Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an… …
95Mountain Park, Fulton County, Georgia — For the census designated place in Gwinnett County, see Mountain Park, Gwinnett County, Georgia. Mountain Park, Georgia Sunrise over Lake Garrett in Mountain Park …
96Stream bed — The bed of this stream is armored with rocks, some very rounded (having had a longer life in the stream) and some not. A stream bed is the channel bottom of a stream, river or creek; the physical confine of the normal water flow. The lateral… …
97Weir — A weir (IPAEng|wɪɚ) (also known as a lowhead dam) is a small overflow type dam commonly used to raise the level of a river or stream. Weirs have traditionally been used to create mill ponds in such places. Water flows over the top of a weir,… …
98Patuxent River — Coordinates: 38°19′08″N 76°24′18″W / 38.31889°N 76.405°W / 38.31889; 76.405 …
99Hydrothermal vent — Marine habitats White smokers emitting liquid carbon dioxide at the Champagne vent, Northwest Eifuku volcano, Marianas Trench Marine National Monument Littoral zone …
100Taipa — For the town in New Zealand, see Taipa Mangonui. For the Nakh word тайпа, meaning “clan”, see Teip. Taipa Island Chinese name Chinese 氹仔島 Cantonese Jyutping Tam5 Zai2 Dou2 …
