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  • Explosives In Soils At Many Army Installations
    2,584 words
    Bioremediation of Explosives in Contaminated Soil Abstract TNT is not the kind of substance that most people think of composting, but it can be done! At several U.S. Army depots, the water used in processing explosives was disposed of through evaporation from unlined lagoons. This has resulted in sediments and soils that are contaminated with TNT (2, 4, 6- trinitrotoluene) and its derivatives RDX (hexahydro-1, 3, 5-trinitro-1, 3, 5-triazine) and HMX (octahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7-te...
  • Good Reflection Of Climatic Change Pollen Analysis
    579 words
    Reconstruction of local area terrain, availability of water ground water, susceptibility to flooding. Conditions over different years. Loss of sits through erosion, inundation and burial under sediment. Glaciers can give us clue to possible resources of earlier ages Varies etc layers of sediment thickness explaining climate Rivers: important as settlement often nearby due to settle deposits, changing course through natural processes shows lots of changes. Rough chronology of sites from rivers et...
  • Soil Of Other Planets
    495 words
    SOIL Soil Erosion The soil over North America is becoming more and more useless for agriculture purposes. A great deal of the fertile top soil has vanished leaving behind a cement like surface of rocks and pebbles. This deterioration of the soil is called erosion. The forces most responsible for this kind of erosion are wind, water and ice. For many years leaves and grasses on the prairies protected the soil from the force of heavy rains permitting water not to be absorbed into the soil but into...
  • Organic Particles In Soil
    371 words
    Soil and Fertilization Soil is the superficial covering of most of the earth's land area. This soil is made up of minerals and organic particles produced by organic decay. The main components of soil are undissolved inorganic compounds, soluble nutrients, organic matter, water, and gases. The physical nature of soil is determined by the proportions of different sizes. Inorganic particles range from large particles such as stone and gravel, to smaller particles. The smaller particles or species p...
  • Soil Full Of Nutrients For The Plant
    2,000 words
    How pH of Soil affects a Plant's Growth For the experimental aspect of the research report, four sets of two plants are to be studied. They must either be checked according to size for the same height, or started from seed to ensure equality. Two identical sets of roses are to be cultivated, as well as two sets of corn plants. The flora must all be given the same amount of water and sunlight each day. The only variable to be changed is pH. One of each set will be planted in the acidic soil, and ...
  • Electrode Assisted Soil Washing Technology
    1,042 words
    Soil washing is generally considered a media transfer technology. Typical environmental problems involve contaminated soil, sludge, surface water, and groundwater, usually containing widely distributed contaminants such as heavy metals, organics and their byproducts / decomposition products, and low-level radioactive materials. To develop an effective treatment for a contact-contaminated soil or other waste, it is necessary to understand its physical and chemical characteristics, including the d...
  • Desert Tortoise From Areas
    1,191 words
    Vulnerable to the harsh desert conditions, the desert tortoise spends almost all of its time waiting out extreme temperatures in its underground burrow. There, this armored, terrestrial turtle conserves its energy and stays relatively cool during summer months, and relatively warm during winter months. This turtle, Californias official state reptile, carries a high-domed tan to dark brown carapace (shell), which protects them from most predators. Yet even those shells are unable to shield the de...
  • Soil Exposure And Great Erosion
    901 words
    The Dust bowl of America in the 1930 the Dust Bowl of North America refers to a catastrophe in the early 1930's when vast areas of the Midwestern and Western farm lands of America became wastelands. This occurred due to a series of dry years which coincided with the extension of agriculture in unsuitable lands. Droughts and dust storms caused by poor tillage practices devastated farms and ranches of the Great Plains; therefore, causing a great exodus of its inhabitants to other, more fertile, la...
  • Plant Nutrients And Fine Soil Particles
    2,197 words
    Effects of Agriculture on the Environment Introduction: Agriculture has changed dramatically, especially since the end of World War II. Food and fibre productivity rose due to new technologies, mechanization, increased chemical use, specialization and government policies that favoured maximizing production. These changes allowed fewer farmers with reduced labour demands to produce the majority of the food and fibre. Humans, like all other species, exploit their surroundings for the resources the...
  • Soil In A Hydroponic Garden
    332 words
    Advantages of Producing Crops Through Use of Hydroponics HYDROPONICS derives its name from the Greek HYDRO-PONO S meaning water / labor. Literally, 'Hydroponics' means 'Water Work. ' There is no soil in a hydroponic garden. No organic matter is present so nourishment (Nutrient) is not available to the plants in the same was as it is in a soil garden. Instead, nutrients are added to the water. So, as plants are watered, they are also fed. There are many ways to feed and water plants. The method c...
  • Significant Source Of Cadmium Contamination For Soils
    1,331 words
    Cadmium and sewage sludge This essay concentrates on the heavy metal cadmium, and its occurrence in the environment, its pathways into and out of the human body and its movement into and out of Sewage sludge. Firstly, I will provide a clear definition of the Heavy Metal Cadmium. What is Cadmium? Cadmium is a naturally occurring element in the earth's crust. Pure cadmium is a soft silver-white metal, but this form is not common in the environment. Rather, cadmium is most often encountered in comb...
  • Water The Soil
    352 words
    What is it? Waterlogging is the lower in land productivity through the rise in groundwater close to the soil surface, and also where the water table rises above the surface. The raised water table results in the soils becoming waterlogged and air spaces in the soil are filled with water, and plant roots, in effect, suffocate from the lack of oxygen, limiting plant growth in those areas. Where does it occur? Water logging occurs where bad irrigation methods are used and in poorly drained soils wh...
  • Salt Effect Two Areas Of Ground Water
    1,570 words
    Salt Pollution As awareness for pollution increases, other forms of pollution a redefined. Almost everyone knows about toxic waste and carbon dioxide pollution, but not many people have heard of salt pollution. Salt pollution has been on the increase since the evolution of the automobile. With more pressure on government agencies to keep the highway clear and safe, an increase in the use of salt has developed. It is important to understand why salt is used and how it work as well as the environm...
  • Soils Substrate In Water
    528 words
    Leopard Frog - Rana Pipiens Distribution: Found throughout Ontario but more abundant in southern and central Americas. Range: Adults maintain small home ranges (up to 500 m 2) in fields or open forest during the summer. Where terrestrial habitats are quite dry, home ranges include some shoreline. A minimum of 4 ha of terrestrial habitat is recommended for the vicinity of breeding sites, however, individual adults may move several kilometres away. Most recently metamorphosed froglets stay within ...
  • Stream Bank Erosion Stream Bank Erosion
    943 words
    Erosion Streams, along with stream erosion, play important parts in the development of the land all over the world. Many important events happen from the result of erosion, including the construction of waterways, erosion of mountains and other natural things, and also deposition of particles. What is Erosion Erosion is the transportation of loose sediments or rock produced by weathering. Moving water is the primary agent for erosion, although ice, gravity, and wind can also cause it. The many k...
  • Rates Of Soil Erosion
    1,816 words
    SOIL EROSION Soil erosion is a gradual process that occurs when the actions of water, wind, and other factors eat away and wear down the land, causing the soil to deteriorate or disappear completely. Soil deterioration and low quality of water due to erosion and run off has often become a severe problem around the world. Many times the problems become so severe that the land can no longer be cultivated and is abandoned. The key to minimizing soil erosion and saving the farm lands is the farmer h...
  • Effect Of Three Variables On Water Conductivity
    1,830 words
    Abstract This experiment was designed to explore nature of water as it pertains to conductivity. It can be shown that the conductivity of a substance is directly related to the amount of dissolved salts in the substance, as salts are ions. One contributor to water conductivity, therefore, is soil, as it contains many minerals and other substances which, when dissolved in water, form ions. The experiment focused on the effect of three variables on water conductivity: the type of soil, the amount ...
  • Your Buildings Insurers
    5,132 words
    Glossary: Subsidence - warning signs Subsidence depends on the soil on which a house is built and on the age of the property. Those built before 1960 are likely to be more vulnerable because foundations tend to be shallower. Trees can also add to the problem, taking moisture from the soil and stretching their roots into your foundations in their search for water. The most thirsty are oak, elm, ash, poplar and willow. A good-sized tree may drain a tanker-full of water a month from the soil in hot...

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