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  • Limestone Featured Article Limestone Limestone

      Limestone  is a sedimentary rock whose chief mineral component is calcite (calcium carbonate: CaCO3). Limestone can be formed by precipitation of calcite... More »

  • Marine microbes Featured Article Marine microbes Marine microbes

    The term 'Marine microbes' encompasses all microscopic organisms generally found in saltwater. Most micro-organisms are acellular and fall into the major categories of... More »

  • Fluorine Featured Article Fluorine Fluorine

    Fluorine is a highly reactive chemical element with atomic symbol F. Having the atomic number nine, fluorine is the lightest halogen. Fluorine is a yellow-green gas... More »

  • Carpenter bee Featured Article Carpenter bee Carpenter bee

    This hexapod (six-legged) insect is a bee in the subfamily Xylocoinae of either the genus Ceratina or Xylocopa that makes its nest in wood or plant stems. Along... More »

  • Egypt Featured Article Egypt Egypt

    Egypt is a nation of eighty-four million people in north-Africa, it also controls the Sinai Peninsula, part of the Middle East and western-Asia. Thus, Egypt controls the only... More »

  • Endangered species Featured Article Endangered species Endangered species

    An endangered species is a biological taxon that is at risk of becoming extinct in a proximate time frame much sooner than the long term horizon in which species typically... More »

  • Trinity Site, New Mexico Featured Article Trinity Site, New Mexico Trinity Site, New Mexico

    Trinity Site, Alamogordo Bombing Range, New Mexico ( 33°40'30.00"N, 106°28'30.00"W) was the site of the first atmospheric atomic bomb test which took... More »

  • Biological diversity in the Himalayas Featured Article Biological diversity in the Himalayas Biological diversity in the Himalayas

    Stretching in an arc over 3,000 kilometers of northern Pakistan, Nepal, Bhutan and the northwestern and northeastern states of India, the Himalaya hotspot includes all of... More »

Recently Updated
Daugava River Last Updated on 2015-01-12 07:37:16 The Daugava River drains portions of the countries of Latvia, Belarus and Russia, prior to discharging to the Gulf of Riga. Also known as the West Dvina River, this watercourse is the fourth largest river discharging to the Baltic Sea catchment. This 1005 kilometer long river has suffered environmental damage from agricultural runoff and from hydroelectric dam construction, with major impacts dealt in the Soviet era of collective farming. In ancient history the Daugava estuary was a locus of prehistoric settlement, and later marked one of the eastern limits of the voyages of the Vikings. The lower Daugava valley (nearest the Gulf of Riga) was formed in relatively recent times, as glacial meltwater formed incision on the relatively level terrain near the Baltic Sea coast; these events occurred in the early Holocene, approximately 11,000 years before present. The relatively soft upper... More »
Denmark Last Updated on 2014-12-19 12:32:19 Denmark is a nation of just over five-and-a-half million people in Northern Europe, bordering the Baltic Sea and the North Sea, on a peninsula north of Germany (Jutland) and includes roughly 500 islands, including several major islands (Sjaelland, Fyn, and Bornholm).  It is a part of the generally fertile and mostly agricultural region known as the North European Plain. This entire region is generally flat to slightly rolling and is overlain with glacial deposits. Denmark also includes the Faroe Islands and Greenland. Its major environmental issues include: air pollution, principally from vehicle and power plant emissions; nitrogen and phosphorus pollution of the North Sea; drinking and surface water becoming polluted from animal wastes and pesticides Flooding is a threat in some areas of the country (e.g., parts of Jutland, along the southern... More »
Marine biodiversity Last Updated on 2014-12-15 19:53:24 Biodiversity is now commonly defined as the variety of life in genes, species and habitats. According to the definition of the Convention on Biological Diversity, biodiversity is the variability among living organisms from all sources, including inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems. The three domains of life, bacteria, archaea and eukarya are present in the marine environment. In addition there are viruses. About 230,000 species of marine plants and animals have been scientifically described and a few thousand bacteria and archaea. This known biodiversity only represents a small fraction of the number of species existing, except for the macrophytes and seagrasses which are living in coastal environments and, in general, for the pelagic... More »
Malaysia- FAO's Information System on Water and Agriculture Last Updated on 2014-12-07 21:15:44 Malaysia is situated in southeast Asia. It consists of two regions: peninsular Malaysia in the west lying between Thailand and Singapore, and the states of Sabah and Sarawak located in the east on the island of Borneo. The two regions are separated by the South China Sea. The total land area of the country is 328 550 km². Malaysia is a federal country, divided into 13 states plus the federal territories of Kuala Lumpur and Labuan Island.. The Food and Agriculture Organization of the United Nations (FAO) leads international efforts to defeat hunger. Serving both developed and developing countries, FAO acts as a neutral forum where all nations meet as equals to negotiate agreements and debate policy. FAO is also a source of knowledge and information. In peninsular Malaysia, a mountainous spine known as Banjaran Titiwangsa sepa-rates the east of the... More »
Fisheries and aquaculture Last Updated on 2014-12-07 21:08:51 In 2002 the global production from fishing and aquaculture combined reached about 133 million tonnes. The global yield from capture fisheries is stagnating, but aquaculture has been expanding. The quantities of fish captured remained stable at about 93 million tonnes per year between 1999 and 2002. China and Peru are leading the top ten of countries with the largest catches. The same countries have remained in the top ten for over a decade. Oceans and seas provide 90% of the world's fishery catches. During the past decade marine catches brought to land increased slightly compared to the preceding decade. It should be noted that the quantity of marine fish caught and discarded fell by several million tonnes in the same time period. Trends vary greatly across different regions and for different species. The species yielding the largest harvest is the Peruvian... More »