pieces of evidence towards proving that the plate tectonics theory is valid” Discuss the extent to which you agree with this statement (40m) The theory of plate tectonics explains the structure and motion of the Earth’s lithosphere. The theory states that the Earth’s crust is split into large sections called tectonic plates‚ and these move relative to one another creating boundaries at which the plates converge‚ diverge or move past each other. These plates are either continental or oceanic and are
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Analyse the factors that cause differences in the hazards posed by volcanoes around the world (40 marks) Your main factors can be put into two simple categories. Human and physical. From there you can then further explore the factors. In my essay I will mainly focus on viscosity‚ location‚ settlement and perception and explore how the physical and human factors intertwine with each other through one simple idea that physical factors dictate the hazard while human factors exacerbate the hazard. From
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the mid-ocean ridges because they are divergent plate boundaries.-areas where earth’s lithospheric plates are moving away from each other. The movement causes the crust to be very "thin ". The thinning allows the magma to come to the surface and form a volcano. Volcanoes can also occur at tectonic plate boundaries because Volcanoes form where the earth’s crust is thin and the magma can flow to the surface easier. This happens mostly at the edge of the plates. Volcanoes lastly can occur at subduction zones
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shook the West of Northern Sumatra‚ Indonesia‚ as well as many other neighboring countries‚ was of a great 9.0 magnitude on the Richter scale. “At the source of the earthquake‚ the interface between the India plate and the Burma plate dips about 10 degrees to the east-northeast. The subducting plate dips more steeply at greater depths”(USGS). The quake occurred when the Earth’s crust‚ a 1‚200 km segment of the crust‚ shifted
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Table 2.The treatments and the amount of Duranta leaf extract after Rotary Evaporation The treatments were applied to the surface of the petri plates and pure culture of Fusarium sp. where it was grown Together with the planting of the fungi‚ the treatments are also applied to the plates. The plates was incubated for five (5) days and its zone of inhibition was recorded. Preparation of Culture medium The powdered medium of Potato Dextrose Agar (PDA) was prepared following
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Haiti - and the island of Hispaniola as a whole - lies on the boundary between two major tectonic plates‚ Caribbean and North America‚ which slide past each other at a speed of about 2 cm/year (Figure D). This relative motion causes the build up of pressure on several faults lines across the island. When the pressure exceeds the mechanical resistance
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What is Sea-floor spreading? Seafloor spreading is a process of plate tectonics in which new oceanic crust is created as large lumps of the Earth ’s crust split apart from each other and magma shafts up to fill the gap. Who discovered sea-floor spreading? The man who discovered sea floor spreading was Harry Hess. Harry Hess was a geologist. Part of his mission had been to study the deepest parts of the ocean floor. In 1946 he had discovered that hundreds of flat-topped mountains‚ perhaps sunken
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has been slowly accumulating. The earth is made up of tectonic plates these are massive slabs of rock floating on magma ‚as the plates move about‚ they spread apart‚ collide‚ or slide past each other‚ This is the main cause of volcanoes and earthquakes Earthquakes occur in many regions all over the world in some regions they occur more frequently and severely than in others (depending on the location)‚ the main cause of earthquakes is tectonic plates grinding against each other ‚ therefore earthquakes occur
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which Japan had ever recorded and can only be explained by plate tectonics. As seen in figure 3‚ the earthquake occurred in a subducting zone where the Eurasian plate and the Pacific plate are converging. Figure 4 shows the continental Eurasian plate being subducting the oceanic Pacific plate and every year the pacific plate travels a distance of nine centimetres towards
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Purpose The principle of this experiment is to have a thorough perceptive of: • Culture washed and unwashed lettuce on agar plate. • Culture fresh and opened milk with the same expiration dates. • Explain the significance of food safety. • Illustrate foodborne sicknesses.
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