Continental drift is a theory stating that the Earth’s continents have been joined together and have moved away from each other at different times in the Earth’s history. The theory was first proposed by Alfred Wegener in 1912. Whilst his general idea of continental movement eventually became widely accepted‚ his explanation for the mechanism of the movement has been supplanted by the theory of plant tectonics. However there was a problem in accepting this idea originally because Wegener had no convincing
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for 3 days. The root of the disaster was a shock that happened on the boundary between the Eurasian and the Philippine plate‚ a boundary that runs right beneath Kobe. Kobe lies close to a fault line between the Philippine and South Japan Tectonic plate. The 2 plates are sliding past each other. This is called a passive plate boundary. There is a direct relationship between plate margins and earthquakes‚ throughout the world. Japan is very prone to earthquakes‚ because of the countries special physical
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Describe landforms of this region. High mopuntain ranges and extensive plateaus contrast with wide river valleys is more common to see bare rock than grassy or wooded slopes. Such landform differences are related to geological activity along tectonic plate boundaries of the African‚ Arabian and Eurasian plates What major rivers are located here? What countries dothey flow through? What is the importance of water in this region? What is an oasis? 3.What empire controlled the region before European mandates? The empires of Assyrians
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Effect of chalepensin on S. mutans growth Fifty microliters of a S. mutans suspension (1 x 103 bacteria/ml) in BHI medium (Remel‚ Lenexa‚ KS) were transferred to flat-bottomed 96-well plates (Corning Incorporated‚ Corning‚ NY) containing serial dilutions (1:2) of 50 μl of chalepensin‚ or 1 μg/ml tetracycline‚ chalepensin-free vehicle (vehicle was similarly processed as with chalepensin extraction‚ but without plant material)‚ and culture medium controls‚ and incubated for 6 h at 37°C. Next‚ MTT was
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Evaluate the strategies used to reduce the impact of tectonic hazards. Tectonic hazards are comprised of earthquakes and volcanoes; they are named ‘tectonic hazards’ as it is ultimately the movement of tectonic plates that cause these events. These hazards have the potential to kill thousands and devastate the region it strikes. Although the main hazard causes destruction‚ events that follow can be equally‚ if not more‚ devastating‚ for example an earthquake can often trigger a tsunami. Many strategies
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Organic Lab 1: Fractional Distillation Discussion: With the purpose of the experiment being to identify the 30 mL of unknown liquid‚ the theoretical basis of simple and fractional distillation must be deconstructed and applied to the data obtained describing the liquid in question. Simple distillation is a separation technique which can be used to separate and purify distillates from a liquid mixture which ideally contains one volatile and one non-volatile compound. If such ideal conditions are
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Planet Earth contains three compositional layers- CORE‚ MENTLE & CRUST. Core: At the centre is the densest of the three layers‚ the core. The core is a spherical mass‚ composed largely on metallic iron‚ with lesser amount of nickel and other elements. Mantle: The thick shell of dense‚ rocky matter that surrounds the core is mantle. The mantle is less dense than the core but denser than the outer most layer‚ the crust. Crust: Above the mantle lies the thinnest and outermost layer‚ the crust
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History of Rock Worksheet Write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. Igneous rocks can come from two hot liquid like materials‚ which are lava and magma‚ these to substances are a lot alike‚ magma is what lava is before it is taken to the Earth’s surface by a volcano eruption. These substances being such a large part of the forming of Igneous rocks is where the rock gets its name‚ the word igneous comes from the word ignis‚ which
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structures called ascospores. It is these structures‚ ascospores‚ where genetic variation that arises from crossing over is easily seen (Davidson). The organism Sordaria Fimicola is a good example of this process because it is easy to grow on agar plates and because they are easy to be seen when looked at through a microscope (Davidson). There are three strands of Sordaria Fimicola used in this experiment; all were retrieved from an area known as the Evolution Canyon. The Evolution Canyon has two
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Quantitative & Semi-quantitative Viable Plate Counts Molly Wright‚ Jenny Cano‚ Rosa Ramirez BIOL 2420 Lab M/W 4/20/15 Professor Rotibi ABSTRACT: Accurate evaluation of bacterial colonization as a predictive index for alfalfa sprouts has relied on a quantitative culture technique that provides exact colony counts per gram of tissue by culture of five serial dilutions of the alfalfa water. In this study 1 package of alfalfa sprouts were cultured by a semi-quantitative technique that enumerated
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