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Unit 1 Test Review

Unit 1 Test Review - Geology Study Guide Unit 1 Chapter 1...

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Geology Study Guide – Unit 1 Chapter 1: Planetary Environment - Environmental Geology is the study of varied interactions between Humans and the geological environment, it attempts to explain how and why geological processes happen - Parts of the Scientific Method: o Observation Measured data is obtained o Hypothesis Tentative explanation that makes predictions that can be tested o Theory Hypothesis that survives many tests by many people; accepted as a possible explanation o Law Theory so well tested that most scientists accept it without question; however, even laws sometimes get thrown out - Sustainability: The goal of ensuring that there are enough natural resources to support human life, “reduce, reuse, recycle”, not possible with non-renewable resources - The Earth is about 4.5 Billion years old and its has 4 parts: o Core Mostly iron, hot, dense, and the source of the magnetic field. Has an Inner core that is solid and an Outer core that is made of molten metal o Mantle Mostly solid rock, able to flow slowly – hot liquid akin to silly puddy o Crust Outer part, rocky shell, part we live on - Impacts from natural hazards and population density are related because the more people live in an area prone to natural hazards the more likely there is to be destruction. More people = more impact. Costs of natural hazards has been rising, death is stable - Applications of Environmental Geology: o Use and disposal of Earth’s resources Only source for minerals is in Earth o Groundwater, need to protect it o Land-use planning o Reduction of risk from natural hazards Chapter 2: Minerals and Rocks - Mineral - a naturally occurring, inorganic solid chemical compound that is formed by geological processes - Isotope – Atoms of the same atomic number but different atomic mass can be used to detect: - Age of rocks and organisms - Past climates - CO 2 from fossil fuels in the atmosphere - Minerals form by crystallization which is the: - Growth of a solid from a gas or liquid
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