"Plate armour" Essays and Research Papers

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    Zone of inhibition

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    one method of measuring the effectiveness of an antimicrobial agent against bacteria grown in culture. This is called the Kirby-Bauer disk-diffusion method‚ and here is how it works. The bacteria of interest are swabbed uniformly across a culture plate. Then a filter-paper disk‚ impregnated with the compound to be tested‚ is placed on the surface of the agar. The compound diffuses out from the filter paper into the agar. The concentration of the compound will be higher next to the disk‚ and will

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    Ring of Fire

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    fire have to do with plate tectonics? The Ring of Fire is a direct consequence of plate tectonics and the movement and collisions of crustal plates.What does the ring of fire have to do with plate tectonics?The "Ring of Fire" refers to a string of volcanoes‚ which create a ring in the Pacific. The relevance to plate tectonics‚ is that volcanoes are created by two plates coming together and pushing up on each other to create the volcano. The Ring of Fire is evidence of high plate tectonic movement in

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    60 Petri Dish

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    solidify at room temperature. After an hour‚ the dishes were placed in a refrigerator at three degrees Celsius. If there was visible condensation on the agar plate‚ they were flipped to avoid the contact of heat that drove the moisture out of the agar dishes. The contents of the broth culture of E. coli was gently swirled

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    Volcanoes and Earthquakes test Bew c. 1. Where do earthquakes occur? Earthquakes occur at breaks in the earth’s crust called the fault lines. 2. What causes Earthquakes? Tectonic plates pushing‚ pulling‚ slipping past each other increasing the stress and causes elastic rebound to happen. During elastic rebound‚ energy is released and some travel as seismic waves‚ which cause an earthquake. 3. How do earthquake waves travel and what are the various types of waves? Body waves

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    earthquakes

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    Earth’s tectonic plates. Tectonic plates shift when two separated pieces of Earth’s crust push together because of the pressure of the hot air below them pushing up on the plates from the heat of the Earth’s core. This pressure must be released somehow‚ so when the pressure becomes too great for the plates to withstand‚ one part of a plate gives way to the pressure by rising above the other part of the tectonic plate. This then causes the top plate to overlap and collide with the other plate. This collision

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    Formation of Andes

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    destructive plate boundary. The Nazca Plate which is an oceanic plate in the west is dragged to move towards the South American Plate which is a continental plate in the east. The force driving the two plates to collide is resulted by converging subcrustal currents of magma in the asthenosphere below the earth crust. Such slow collision of the two plates takes place very slowly over millions of years in earth’s history. Due to the heavier density of the oceanic crust‚ the Nazca Plate is subducted

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    Restless Earth Key Terms

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    zone When 2 continental plates collide. Neither plate is forced under the other‚ nor so both are forced up and form fold mountains. Composite volcano Composite volcanoes are made up of alternating layers of lava and ash (other volcanoes just consist of lava). They are usually found at destructive or compressional boundaries. Cone They are the build-up of rock from the volcanic vent; it piles up in the shape of a cone with a central crater. Conservative plate boundary a plate boundary where the relative

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    is associated with two of the plate boundary types: divergent and convergent margins‚ so activity is usually found along oceanic ridges where plates are moving apart‚ near rift valleys‚ on subduction zones where the most violent activity takes place and over hot spots which have given rise to the Hawaiian islands. Magma is generated at most plate boundaries‚ and this magma rises to the surface to form volcanoes. The mobility of crust also causes earthquakes. When plates collide or slide past each other

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    Chapter 4 plate tectonics Need a Hint? 1.What evidence proved that South America‚ Africa‚ India‚ and Australia were once covered by glaciers? glacial deposits and rock surfaces scarred by glaciers 2. What happens when an oceanic plate converges with a continental plate? The denser oceanic plate slides under the less dense continental plate. 3. A divergent boundary is a boundary between two plates that __________. Move away from each other. 4.Do two colliding continental plates always

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    Geologic Mapping Resources

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    An Introduction to Structural Geology Introduction Structural geology is the study of the features formed by geological processes. Features include faults‚ folds and dipping strata. Geologists can work out the order of events and see which events are related by taking fairly simple measurements and using simple methods. Measurements and Techniques The most obvious thing to do when trying to decipher the structural history of a formation is to describe it. One way of doing this is to measure the dip and strike

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