Dynamic Earth Has the Earth been static since the beginning of time? Well‚ Earth hasn’t been moving vigorously but it is changing at a steady rate. New geological features‚ rock formations‚ and locations of plates all rise and demolish some in a lifetime and others over a span of millions of years. Earth is dynamic; it constantly progresses and doesn’t rest. Through the churns and molds‚ the twists and turns‚ Earth is active because of plate tectonics and the rock cycle. The ideas
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Explain why some places have a high level of landslide and avalanche hazard risk. Land slides and Avalanches are one of the worlds most major natural hazard types. They kill between 25 and 50 people per year and cost the United States $3.5 billion to repair per year. Landslides are caused when soil is disrupted. For example when deforestation occurs it removes the roots from the soil. The soil can then not hold it self together so when it rains the soil becomes saturated and falls. They can also
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Coal Mining Coal mining is taking coal out of the earth for use as fuel‚ and there are two types of it: surface and mountaintop mining and underground mining. Coal is one of the most important resources because of its ability to be a fuel. Surface mining is used when the coal is near the surface‚ and a process known as strip mining extracts it; this is literally tearing a strip out of the earth to expose the coal. This is a highly controversial method though because by taking so many strips
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Rubidium To start off this amazing element has just a little bit of history to it. At first when I heard about this element I thought it was some type of gas but it can turn it to a liquid at a certain type of liquid. But is actually a very shiny type of metal. Rubidium was discovered by Kirchoff and Bunsen in 1861 through the use of a spectroscope. Rubidium metal can be made by minimizing rubidium chloride with calcium with other substances. The cost of this metal in small quantities is approximately
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Continental drift The broad shape of Australia and its distinctive landforms have been influenced over long periods by earth movements that cause the breaking and bending of the Earth’s crust. Geographers call these movements tectonic processes. The Earth’s crust is made up of many individual moving pieces called tectonic plates. There are nine large plates and about a dozen smaller ones. The larger plates contain the continents and oceans. These plates ‘float’ on the dense layer of rock below
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Geology Study Guide Chapter 1 Themes of Textbook The Earth is a unique‚ evolving system. Within the Earth System‚ chemical elements pass in cycles between different types of rock and sea‚ rock‚ and air. Plate Tectonics explains many Earth processes. Earth has a core‚ mantle‚ and crust. Measurements: 1 Ka=1 thousand years ago 1 Ma=One million years ago 1 Ga=One billion years ago The Earth is 4.57 billion years old. Big Bang All matter and energy was initially packed into
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KEY to Homework Questions for Sedimentary and Metamorphic Rocks Lecture 6-7 Use these questions to test your knowledge of Sedimentary and Metamorphic Rocks A. Short answer: 1. A rounded pebble would be a type of particle found in a conglomerate. 2. Salt and other minerals that form when a body of water dries up are called evaporites. 3. Sands are the size of detrital sediments larger than mudstones and smaller than conglomerates and breccias.
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Geography Photo Essay Tuesday Decebmer 4th 2009 Table of Contents Lifting Condinsation Level (LCL)…………………………………………….......3 Earth Sun Relationships…………………………………………………………...4 Humidity…………………………………………………………………………..5 Rocks……………………………………………………………………………...6 Atmospheric Lifting Mechanisms………………………………………………...7 Weather……………………………………………………………………………8 Climate…………………………………………………………………………….9 Climate Inappropriate……………………………………………………………10
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Continental Movement Essay Continental Drift is the idea that refers to the movement of Earth’s continents and plates relative to each other. This means that the earth’s plates move because of the unending cycle of cooling and raising of molten rock‚ adding new material t0 the edges of the plates. This movement is called divergent movement‚ the most common of the three types of movement between plates. The other two movements are called convergent and transform-fault. This idea was first
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Natural Landscape Study: Western Brook Ponds‚ Newfoundland and Labrador Western Brook Ponds is part of the Gros Morne National Park located in the western part of the province Newfoundland and Labrador. The Gros Morne National Park is world renowned for being one of the few places on earth in which geologists can studied the upper mantle directly! It also illustrates the concept of plate tectonics‚ the evolution of ancient mountain ranges and justifying why Canada has the most diverse land
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