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World Geography 1996
land area about 16 times the size of the US
70.8% of the world is water, 29.2% is land
the land boundaries in the world total 250,883.64 km (not counting shared
boundaries twice)
24 nm claimed by most but can vary
200-m depth claimed by most or to depth of exploitation, others claim 200 nm
or to the edge of the continental margin
200 nm claimed by most but can vary
200 nm claimed by most but can vary
12 nm claimed by most but can vary
boundary situations with neighboring states prevent many countries from
extending their fishing or economic zones to a full 200 nm; 43 nations and
other areas that are landlocked include Afghanistan, Andorra, Armenia,
Austria, Azerbaijan, Belarus, Bhutan, Bolivia, Botswana, Burkina, Burundi,
Central African Republic, Chad, Czech Republic, Ethiopia, Holy See (Vatican
City), Hungary, Kazakhstan, Kyrgyzstan, Laos, Lesotho, Liechtenstein,
Luxembourg, Malawi, Mali, Moldova, Mongolia, Nepal, Niger, Paraguay, Rwanda,
San Marino, Slovakia, Swaziland, Switzerland, Tajikistan, The Former
Yugoslav Republic of Macedonia, Turkmenistan, Uganda, Uzbekistan, West Bank,
Zambia, Zimbabwe
two large areas of polar climates separated by two rather narrow temperate
zones from a wide equatorial band of tropical to subtropical climates
highest elevation is Mt. Everest at 8,848 meters and lowest depression is
the Dead Sea at 392 meters below sea level; greatest ocean depth is the
Marianas Trench at 10,924 meters
the rapid using up of nonrenewable mineral resources, the depletion of
forest areas and wetlands, the extinction of animal and plant species, and
the deterioration in air and water quality (especially in Eastern Europe and
the former USSR) pose serious long-term problems that governments and
peoples are only beginning to address
large areas subject to overpopulation, industrial disasters, pollution (air,
water, acid rain, toxic substances), loss of vegetation (overgrazing,
deforestation, desertification), loss of wildlife, soil degradation, soil
depletion, erosion
large areas subject to severe weather (tropical cyclones), natural disasters
(earthquakes, landslides, tsunamis, volcanic eruptions)
international agreements:
23 selected international environmental agreements included under the
Environment entry for each country and in Appendix E: Selected International
Environmental Agreements
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