Natural environment

Natural environment

Related to any physical feature of the earth's natural environment.

17Categories 71833Terms

Add a new term

Contributors in Natural environment

Become a Contributors

Natural environment > Speleology

straw stalactite

Natural environment; Speleology

The simplest form of stalactite — a fragile, thin walled tube, normally of calcite, which is the diameter of the drops of water that hang from its end and continue its growth. ...

duck

Natural environment; Speleology

A place where water reaches the cave roof for a short distance and can be passed by quick submergence without swimming.

ground water

Natural environment; Speleology

The part of the subsurface water that is in the phreatic zone. Its lower limits are the zone of rock flowage or the lowest fully confining bed; its upper limits are the uppermost ...

sediment

Natural environment; Speleology

Material recently deposited by water, ice or wind, or precipitated from water.

blind valley

Natural environment; Speleology

A karst valley abruptly terminated by the passage underground of the watercourse which has hitherto resisted the karst processes and remained at the surface. An intermediate type, ...

watershed

Natural environment; Speleology

A drainage basin. 2. A divide separating one drainage basin from another.

ponor

Natural environment; Speleology

Hole or opening in the bottom or side of a depression where a surface stream or lake flows either partially or completely underground into the karst ground-water system.