After reading the book Dirt: Erosion of civilizations, I was able to take away multiple aspects of the cultural and social history of soil. The book surrounds Montgomery’s informative perspective, which is a geomorphologist himself. He begins with a brief introduction to basic soil science, going back to Darwin's work on earthworms and explaining the O, A, B, and C soil horizons and the processes of soil formation. When we think of dirt, we don’t think much in depth. However, the soils has untold
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Jonathan Signater CSS 1302-02 10-18-13 Medhurst General Purpose: To inform (Theory) Specific Purpose: My purpose is to inform my audience about the theory of Continental Drift. Central Idea: My central idea is making sure my audience has a better understanding of the Continental Drift and how the theory was formulated. The Continental Drift Theory` I.(Introduction) For years scientists
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Catastrophism – the belief that the past history of the earth and of living things has been interrupted or greatly influenced by natural catastrophes occurring on a worldwide or very extensive scale. Uniformitarianism – the belief or principal that the past history of the earth and its inhabitants is best interpreted in terms of what is known about the present. It explains the past by appealing to known laws and principles acting in a gradual, uniform way through past ages. The young earth theory
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Geog 2RC3- Physiographic regions- Jan 10/14 Interior Plains- p.38-39 20 % of Canada’s land mass Sedimentary rocks Low relief Elevation increases from east to west Hudson Bay Lowlands- p- 39-41 3.5 % of landmass Low lying, poorly drained landscape (muskeg) Underlain by sedimentary rocks Arctic Lands- 41-42 Archipelago 10 % of Canada’s landmass Pre-Cambrian crystalline (igneous) rock overlain by Paleozoic sedimentary rock Ellesmere Island Appalachian Uplands- p.42 2%
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Geologic Paradigms: Uniformitarianism vs Catastrophism Charlotte R. Jones PHSC 210, Elements of Earth Science David Gilhousen Liberty University Geologic Paradigms: Uniformitarianism vs Catastrophism Introduction When discussing the geologic paradigms of Uniformitarianism and catastrophism the real question at the heart is twofold. First how the landscape of the Earth we now see came to be and then when it all happened. The debate can go deeper into whom or what began the process, however, the primary
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Arthur Holmes is a geologist that found out that mechanical and thermal implications of mantle convection.Holmes was born in the year 1890. He died in the year 1965.He developed the idea of radioactive dating for minerals in his first attempt to quantitatively estimate the earth's age. radioactive dating is when someone uses radioactive material to find out how old a piece of rock is.He retired in 1965.He is known for his help with Alfred wegener's theory of continental drift and the idea of radioactive
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Mining For over centuries, fossil fuels and minerals, which are unrenewable resources and took millions of year to produce under pressure, have played an important roles as raw materials to create human supplies such as: transports, building houses, technology and up to Medicine. However, as the world population is expanding every year, people has depleting an excessive amount of it to satisfied their demands without concerning the impact of their behaviors on the environment. Mining
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In 1915 Alfred Wegener first proposed the theory of continental drift. Wegner hypothesised that there was a gigantic super continent 200 million years ago (Pangaea). He stated that the Pangaea broke up into two smaller continents, which then separated into landmasses that look like our modern day countries. Wegner provided evidence such as the shape of the east coast of South America fits the west coast of Africa, like pieces in a jigsaw puzzle. He also stated that there were unusual violet quartzites
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Introduction: We investigated the pattern (zonation) found on the Rocky Shore. We used translit lines to take samples of the species found in each area as we moved up the shore from low tide to high tide. We investigated the organisms bull kelp, barnacles, moss weed and Limpets to describe the pattern of zonation at the rocky shore. The rocky shore main abiotic factor is tidal movement. The first organism we investigated at the rocky shore was Bull Kelp. Bull kelp is mostly found in the subtidal
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Not long after, the California emergency response team called him, asking what he could say about the earthquake, because the seismometers had been 152 knocked out by its severity. He told them the direction from which it came, along with its approximate distance (based on the time between different waves, but not the P and S that are normally used, as described earlier). From these he guessed that the earthquake was near Santa Cruz, and he was also able to roughly guess its strength. He boasted
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