Environment

The Ramsar sites of DRC are vital in the conservation of wildlife of the country, and provide a safe haven to the rare and endangered flora and fauna of DRC.

April 25, 2017 12:31

Often associated with flashfloods, an arroyo is a stream bed or dry creek that temporarily fills and flows after sufficient rainfall.

April 25, 2017 12:31

Occurring in polar and subpolar climates, palsas are low ovular frost heaves containing ice lenses which are permanently frozen.

April 25, 2017 12:31

When magma heats ground or surface water, it results in an explosion of water, steam, rock, and ash, called a phreatic eruption.

April 25, 2017 12:31

Occurring in glaciated and formerly glaciated regions, an esker is a long, winding ridge of stratified sand and gravel.

April 25, 2017 12:31

A cirque, also called a corrie or cwm, is an amphitheatre-like valley formed by glacial erosion.

April 25, 2017 12:31

When two glaciers erode parallel U-shaped valleys, it results in a knife-like, ridge of rock in the center called the Arête.

April 25, 2017 12:31

The systematic extermination of sparrows in China during the Four Pest Campaign led to large-scale ecological disaster

April 25, 2017 12:31

When sediments are removed by wind to result in a sandy depression in a sand dune ecosystem, it is called a blowout.

April 25, 2017 12:31

When closely packed, interlocking angular or rounded rock fragments cover a desert surface, it results in a desert pavement.

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When a river has a heavy sediment load and steep gradient, a braided channel forms.

April 25, 2017 12:31

A drainage basin is an area where all surface water converges to a single point at a lower elevation to join another body of water.

April 25, 2017 12:31

Point Barrow in Alaska is the northernmost point in the country while Northwest Angle is the northernmost point of the 48 contiguous states of US.

April 25, 2017 12:31

An antipode are two points on the Earth's surface, directly opposite from one another.

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In Arabic and Hebrew, a valley or a dry (ephemeral) riverbed that flows only during the rains is called a wadi.

April 25, 2017 12:31

Victoria, the smallest mainland state in Australia, contained 2,850 separate protected areas of which 45 are national parks.

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Protected areas in New South Wales occupy a total land area of 6,641,256 hectares, consisting of biodiverse ecosystems.

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South Australia has 353 separate protected areas occupying 19.6% of the state’s area of which 22 are national parks.

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Western Australia hosts 1224 separate Protected Areas covering an area of 170,610 square km, roughly 6.30% of the land area of the state.

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Tasmania is the smallest state in Australia and has 584 pieces of both privately and publicly owned reserve land.

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