угаљ

угаљ

Sedimentary rock composed of the compacted, lithified and altered remains of plants. Coal is a solid, combustible mixture of organic compounds, hydrocarbons, with 30% to 98% carbon by weight, mixed with various amounts of water and small amounts of sulfur and nitrogen compounds. It is formed in several stages as the remains of plants are subjected to heat and pressure over millions of years.

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Галузь/тема: Geography
Category: Physical geography
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телење

Geography; Physical geography

A form of ablation whereby a mass of ice breaks away from a glacier or sheet. After reaching a body of water the tip of the glacial mass is floated creating stresses with the main ...

артешки

Geography; Physical geography

The upward movement of groundwater by hydrostatic pressure.

циклус лишавања

Geography; Physical geography

Much the same as the cycle of poverty but as applied to emdw inner city areas. Low wages and poverty mean overcrowding and no investment in housing. These cause poor health and ...

камбријан

Geography; Physical geography

У геолошко време, период који је трајао пре од 570 до 505 милина година.

вештачка поплава

Geography; Physical geography

Deliberate release of water from dam reservoirs to create downstream flooding that is beneficial to farmland or wetland areas.

дерегулација

Geography; Physical geography

The removal of rules, regulations and laws previously imposed on an industry. Often welcomed as the removal of monopoly rights which improve competition and opportunity, they can ...