Land
Land, also known as dry land, ground, or earth, is the solid terrestrial surface of Earth not submerged by the ocean or another body of water. It makes up 29.2% of Earth's surface and includes all continents and islands. Earth's land surface is almost entirely covered by regolith, a layer of rock, soil, and minerals that forms the outer part of the crust. Land plays an important role in Earth's climate system, being involved in the carbon cycle, nitrogen cycle, and water cycle. One-third of land is covered in trees, another third is used for agriculture, and one-tenth is covered in permanent snow and glaciers. The remainder consists of desert, savannah, and prairie.Land terrain varies greatly, consisting of mountains, deserts, plains, plateaus, glaciers, and other landforms. In physical geology, the land is divided into two major categories: Mountain ranges and relatively flat interiors called cratons. Both form over millions of years through plate tectonics. Streams – a major part of Earth's water cycle – shape the landscape, carve rocks, transport sediments, and replenish groundwater. At high elevations or latitudes, snow is compacted and recrystallized over hundreds or thousands of years to form glaciers, which can be so heavy that they warp the Earth's crust. About 30 percent of land has a dry climate, due to losing more water through evaporation than it gains from precipitation. Since warm air rises, this generates winds, though Earth's rotation and uneven sun distribution also play a part.
Land is commonly defined as the solid, dry surface of Earth. It can also refer to the collective natural resources that the land holds, including rivers, lakes, and the biosphere. Human manipulation of the land, including agriculture and architecture, can also be considered part of land. Land is formed from the continental crust, the layer of rock on which soil. groundwater, and human and animal activity sits.
Though modern terrestrial plants and animals evolved from aquatic creatures, Earth's first cellular life likely originated on land. Survival on land relies on fresh water from rivers, streams, lakes, and glaciers, which constitute only three percent of the water on Earth. The vast majority of human activity throughout history has occurred in habitable land areas supporting agriculture and various natural resources. In recent decades, scientists and policymakers have emphasized the need to manage land and its biosphere more sustainably, through measures such as restoring degraded soil, preserving biodiversity, protecting endangered species, and addressing climate change. Provided by Wikipedia
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by Norton
Published 2004
Other Authors: ';
“...Land,...”Published 2004
Call Number:
LB 1576 N888 2004
Located: KOLEKSI PERPUSTAKAAN
Located: KOLEKSI PERPUSTAKAAN
Available
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by Bray, R. N.
Published 1997
Other Authors: ';
“...Land, J. M...”Published 1997
Call Number:
TC 187 .B7 1997
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
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Published 1994
Subjects: ';
“...Land use -- Government policy -- Congresses. -- Europe...”
Call Number:
HD 586 I61 1992
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
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Published 2002
“...Project on People, Land Management and Environmental Change...”
Call Number:
S 494.5 .A43 .C8 2002
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
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Published 2012
Other Authors: ';
“...Land, Kenneth C....”
Call Number:
HN 25 .H3 2012
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
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Published 2004
“...Koninklijk Instituut voor Taal-, Land- en Volkenkunde (Netherlands)...”
Call Number:
PL 5178.2 .B531 M5 2004
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
Available
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Land reclamation : extending the boundaries : proceedings of the Seventh International Conference...
Published 2003
Subjects: ';
“...Reclamation of land -- Congresses...”
Call Number:
S 604.83 I61
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
Available
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Published 1978
“...Conference on the Rehabilitation of Severely Damaged Land and Freshwater Ecosystems in Temperate...”
Call Number:
QH 540 C66 1976
Located: KOLEKSI TERBUKA
Located: KOLEKSI TERBUKA
Available
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Published 2004
Other Authors: ';
“...Land, John M....”
Call Number:
TC 205 .P5 2004
Located: KOLEKSI MARITIM
Get full textLocated: KOLEKSI MARITIM