Environment

The United States Department of Agriculture (USDA) provides an elaborate classification of soil based on the origin, composition, and other features.

April 25, 2017 12:31

A cove is a coastal feature, a small sheltered bay on the coast of an ocean, river, or lake, often associated with scenic beauty.

April 25, 2017 12:31

When an unglaciated river valley is partially submerged leading to the formation of a coastal inlet, it is called a ria.

April 25, 2017 12:31

When the mainland is attached to an island by a narrow piece of land such as a bar or a spit, the resulting landform is called a tombolo.

April 25, 2017 12:31

A spit is a stretch of beach material connected to mainland at the proximal end and projecting out into a water body at the distal end.

April 25, 2017 12:31

Weathering is an important natural process by which rocks, soils, minerals, etc., are broken down by the various forces of nature.

April 25, 2017 12:31

A playa lake is an ephemeral lakebed, meaning that the lake is filled with water only for transient time periods.

April 25, 2017 12:31

An oasis is an isolated patch of land in a desert surrounding a source of water which allows vegetation to grow.

April 25, 2017 12:31

Mudflats serve to protect coastal lands from the eroding forces of nature and also provide an important habitat for shore birds.

April 25, 2017 12:31

A large number of snakes, both venomous species and non-venomous species, call Alabam their home.

April 25, 2017 12:31

A sinkhole is a hole or a depression in the ground that results from some form of collapse of the surface layer.

April 25, 2017 12:31

Lavaka, a type of erosional feature common in Madagascar, is basically a hole etched out on the slopes of a hill by forces of weathering.

April 25, 2017 12:31

Literally meaning the "house of the gods" a tepui is a table-top mountain or mesa found in the Guiana Highlands.

April 25, 2017 12:31

Barkhan dunes are crescent-shaped dunes created by wind action, and are a common landform in sandy deserts all over the world.

April 25, 2017 12:31

An erg is a desert area covered by more than 125 km2 of aeolian or wind-blown sand with little or no vegetative cover.

April 25, 2017 12:31

An alluvial fan is a fan-shaped deposit of sediment crossed and built up by streams, and a convergence of neighboring fans leads to the formation of a bajada.

April 25, 2017 12:31

Fourteen wetlands in Thailand have been designated as RAMSAR Wetlands of International Importance and the list is presented below.

April 25, 2017 12:31

The RAMSAR Convention is an international treaty aimed towards the conservation and sustainable use of wetlands.

April 25, 2017 12:31

A pingo is a mound of earth-covered ice that can reach up to 230 ft in height, and is found in the Arctic and subarctic regions of the world.

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A hoodoo is a slender and tall spire of rock protruding from the base of an arid drainage basin or badland.

April 25, 2017 12:31