impacts of eutrophication. What effects would each of the following have on an aquatic ecosystem? depleted oxygen levels collapse of food chains → decreased biodiversity water contaminated with nitrites cloudy water (turbidity caused by buildup of sediment) 5.4.3 Describe and evaluate pollution management strategies with respect to eutrophication. Minimize the amount of nutrients being released into the system by: limiting production/use of detergents containing phosphates create buffer zones
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Hydraulic fracking is the method of extracting gas from sediments by injecting the area with a mixture of water‚ sand and other chemicals to release methane gas. Another source of fuel is the mining of coal. Unlike fracking‚ coal mining requires labor that is both physically demanding and hazardous. Mining for coal also requires a larger surface area and therefore could have a larger negative impact on the environment. The burning of coal contributes more CO2 emissions than the burning of natural
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2. 1.1 The particles that make up an atom3 Basic sub-atomic particles‚ each has different properties. Name | Symbol | Approximate relative mass | More accurate mass | Relative charge | Proton | p | 1 | 1.0000 | +1 | Neutron | n | 1 | 1.0016 | 0 | Electron | e | Almost zero | 0.000 547 | -1 | This is the culmination of the work of 5 eminent physicists‚ Dalton‚ Thomson‚ Rutherford‚ Bohr and Chadwick.Their work basically culminates in the ideas above and the important fact that an atom consists
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this process is called tetramethylammonium hydroxide thermochemolysis method. Most of the lignin-derived materials in muddy sediments appeared to be derived from non-woody grass-like sources which decays much quicker than logs or other woody materials that are typically found in sandy deposits. The great amounts of tiny sand-sized woody materials found in the sandy sediments are likely made from woody plant
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2. (A) Two environmental problems that are associated with water diversion are decrease sediment downstream of dam and decreased water volume in waterways down/upstream. The decrease in sediments downstream of dams causes nutrients not to transfer so without valuable nutrients plant and animal growth is decreasing. The decrease in water volume in waterways is interfering with the reproductive cycle of plants and animals downstream. For example‚ the Chinook salmon aren’t able to spawn since there
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Crude Oil Crude oil is formed through a long process which took place millions of years ago. Huge numbers of microscopic animals and plants died and fell to the bottom of the sea‚ which is then covered by mud sediments. These mud sediments got buried by more of them‚ and then started to change into rock‚ which created pressure and increased temperature. This resulted in the deceased plants and animals to heat up and slowly turned into fossils which then turns into crude oil. Since oil is less dense
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GROUND WATER THE WATER/HYDROLOGIC CYCLE * Composed of evaporation from the oceans * Movements of moist air inland * Condensation and precipitation * Run-off on the surface or sub-surface back to the ocean * Plus additional minor cycles * Involves the exchange of water with the atmosphere‚ the earth‚ and the different water forms * Done when clouds gain water vapor from the various water forms * Evaporation – process where water turns into steam or gas when the
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AQUATIC FLORA OF PULICAT LAKE‚ NELLORE DISTRICT‚ ANDHRA PRADESH S.K.M.BASHA‚ E.RAJYALAKSHMI‚ P.UMA MAHESWARI NBKR Medicinal Plant Research Centre‚ Vidyanagar – 524413‚ SPSR‚ Nellore (Dt) Mail : drskmbasha@gmail.com‚ Swathisayani@yahoo.co.in ABSTRACT Aquatic plants are those which grows in or near water and are either emergent‚ submergent‚ suspened or floating type. They exists in two forms namely microphytes and macrophytes. Microphytes include
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worldwide flood. Fossils are found all over the world in the same rock layers. Since fossils form only when a plant or an animal dies and immediately covered with sediment (or gets killed by life-choking sediment)‚ therefore the only explanation for fossil recording is a worldwide flood where billions of plants and became buried in the soft sediment of the worldwide flood. No Intermediate
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Essay on The Natural Disaster (Flood In Pakistan) There are many questions emerging from the recent floods in Pakistan‚ ranging from attempts to understand the atmospheric phenomena behind the downpours to the search for where ultimate responsibility lies for the ensuing human calamity. This short essay investigates some of those questions. A pinch of geography is necessary to explain why Pakistan received such an extraordinary amount of rain during this rainy season. The Indian monsoon can
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