Notes in Geology

Jun 28th, 2015
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Geology - the science that pursues an understanding of planet Earth: • Physical geology - examines the materials composing Earth and seeks to understand the many processes that operate beneath and upon its surface • Historical geology - seeks an understanding of the origin of Earth and its development through time

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Geology - the science that pursues an understanding of planet Earth: Physical geology - examines the materials composing Earth and seeks to understand the many processes that operate beneath and upon its surface Historical geology - seeks an understanding of the origin of Earth and its development through time Geology, people, and the environment: Many important relationships exist between people and the natural environment Problems and issues addressed by geology include: Natural hazards, Resources, World population growth, Environmental issues How or why things happen is explained using a: Hypothesis a tentative (or untested) explanation Theory a well-tested and widely accepted view that the scientific community agrees best explains certain observable facts Earth is a dynamic planet with many interacting parts or spheres Earth System Science: Aims to study Earth as a system composed of numerous interacting parts or subsystems Employs an interdisciplinary approach to solve global environmental problems What is a system: Any size group of interacting parts that form a complex whole Examples: Cooling system in cars, nervous system in animals Most natural systems driven by sources of energy that move matter and/or energy from one place to another Open system: Energy and matter flow into and out of system i.e The OceanClosed system: Energy moves freely in and out Matter does not enter or leave system i.e Earth (with regards to matter

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