What Is Soil Pollution? [pic] What Is Soil Pollution? Soil pollution results from the build up of contaminants‚ toxic compounds‚ radioactive materials‚ salts‚ chemicals and cancer-causing agents. The most common soil pollutants are hydrocarbons‚ heavy metals (cadmium‚ lead‚ chromium‚ copper‚ zinc‚ mercury and arsenic)‚ herbicides‚ pesticides‚ oils‚ tars‚ PCBs and dioxins. Until the 1970s‚ there was little talk of soil pollution and its devastating effects. In the 1980s‚ the U.S. Superfund was
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Endemic Species Derek Bunkofske ENVS 201 Conservation Ecology Charles Cole Buena Vista University Endemic Species I chose option 2 for the workshop three assignment which involves defining endemic and finding two endemic species and describe them and their location‚ and what risks they have due to their location and their specific needs. Determine a region with a high percentage of endemic species and a region with a low percentage of endemic species. Explain the specific reasons that
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fertile and not eroded to safeguard agricultural activities e) The natural environment is preserved Human activities that threaten the ecosystem are: Unplanned development and mismanaged development have adverse impact on the ecosystem such as: SOIL EROSION | Topsoil is removed causing the land to be unsuitable for farming activities | FLASHFLOODS | Sudden and rapid floods in low lying areas due to poor surface run-off causing loss to lives and property | EXTINCTION OF FLORA AND FAUNA
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relatively few species from many different classes of Ascomycota‚ whereas tropical endophyte assemblages are dominated by a small number of classes with a very large number of endophytic species. The most easily cultivated endophytes from tropical plants have wide host ranges‚ but communities are dominated by a large number of rare species whose host range is unclear. Even when only the most easily cultured species are considered‚ leaves of tropical trees represent hotspots of fungal species diversity
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Jonathan G. Misa ENSCI BSHRM401 1. 10 common species in the philppine ( flora and fauna ) Sampaguita The sampaguita is a small‚ white flower found in the swamps and forests of the Philippines. These flowers have soft‚ wide‚ paper-thin petals. The foliage is light green and the stems are thick. Many people use these flowers as decorations or garden plants. They are popular for weddings and special occasions. Jackfruit (Artocarpus heterophyllus) Langka is a smooth tree reaching
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Bio 9/12/10 Coral Reef Biome Though not considered a major biome‚ coral reefs qualify by definition. Coral reefs are marine ecosystems located within clear‚ shallow water. These reefs require water between 25 and 31 degrees Celsius‚ and do well in water with a salinity of 34 and 37 parts per 1000. These conditions are most often found within 30 degrees latitude of the equator‚ or in other words‚ the tropics. As the name suggests‚ corral reefs are formed by colonies of coral polyps. Coral polyps
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Soil formation‚ or pedogenesis‚ is the combined effect of physical‚ chemical‚ biological and anthropogenic processes on soil parent material. Soil is said to be formed when organic matter has accumulated and colloids washed downward‚ leaving deposits of clay‚ humus‚ iron oxide‚ carbonate‚ and gypsum. As a result‚ horizons form in the soil profile. These constituents are moved (translocated) from one level to another by water and animal activity. The alteration and movement of materials within a soil
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Synthesis Essay One: Chaparral Jake Nokes Student K00701244 (Malibujake2010@hotmail.com) Login: Saki Question A The chaparral biome is found in small parts of most continents‚ central and southern California‚ parts of the southwest United States‚ the area adjacent to the Mediterranean Sea‚ and areas of southern Australia‚ South Africa and Chile. The chaparral area in Santa Barbara County is the fourth largest in California in terms of acreage. Chaparral communities occur between 200 and 5000 feet
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CHAPTER 8 Soil Compaction Soil compaction is one of the most critical components in the construction of roads‚ airfields‚ embankments‚ and foundations. The durability and stability of a structure are related to the achievement of proper soil compaction. Structural failure of roads and airfields and the damage caused by foundation settlement can often be traced back to the failure to achieve proper soil compaction. Compaction is the process of mechanically densifying a soil. Densification
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Biodiversity has been on the decline over the past century and the background rate has been mostly accelerated by the humans. Considerable damage has already been done. Possible solutions have been discussed and categorising species according to how in danger they are is one of those solutions. Below are some of the threatened organisms in different continents around the world. TABLE OF CONTENTS Africa Mammals Birds Reptiles Amphibians Fishes Asia Mammals Birds Reptiles
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