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Chapters 10-14, Chapter 14 fossil fuels and energy, Chapter 12, chapter 10…
Chapters 10-14
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oil/petroleum
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oil shale - contains small amounts of oil, kerogen
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Water Properties
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cohesion - water binds with water, creates surface tension
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water uses and managment
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problems
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lower water tables, salt water intrusion
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Food crisis
main problems
hunger, malnutrition, undernourishment
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Composition
particles - sand, silt, clay
soil horizons - O (organic, humus), A (dark), B , E (light color from leaching)
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25% water, 25% air, 45% minerals, 5% organic
use of biotechnology
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GMOs
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pest resistant crops, pesticide resistant crops
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