Environment

Eco-efficiency is regarded as one of the best tools to promote a transformation from unsustainable development to sustainable development.

April 25, 2017 12:31

Yardang is a streamlined protuberance carved from bedrock by wind abrasion by dust and sand, and the deflation process.

April 25, 2017 12:31

An atoll is a ring-shaped coral reef partially or completely surrounding a lagoon and is a common oceanic landform found in many parts of the world.

April 25, 2017 12:31

Bosnia and Herzegovina's national parks are instrumental in the protection of the biodiversity and cultural heritage of the country.

April 25, 2017 12:31

Fertile low-lying grassy plains that are found in sections of the northwest coastlines of Ireland and Scotland are called machairs.

April 25, 2017 12:31

When sea caves grow landwards and upwards to be exposed at the surface, it results in a blowhole. Water often gushes out of the blowhole with great force.

April 25, 2017 12:31

An area of open water surrounded by sea ice is called a polynya. Polynyas support a wide variety of marine organisms.

April 25, 2017 12:31

National Wildlife Refuges are protected areas in the United States managed by the USWS and are meant for the conservation of rare and endangered wildlife.

April 25, 2017 12:31

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.

April 25, 2017 12:31

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