Warm-up Metals ission Radioactive, heavy _________ are fuel for the process of Nuclear F__________. What are 2 bad things about wind energy? NOISY! Land.

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Presentation transcript:

Warm-up Metals ission Radioactive, heavy _________ are fuel for the process of Nuclear F__________. What are 2 bad things about wind energy? NOISY! Land is Expensive! Geothermal energy is clean, but it R_______ O_______ as it cools off. uns ut

“Water, Air, & Land Resources” Chapter 4, Section 3

Q: What do we use water for? “Water Planet” Earth = 71% water Mostly salt water We need fresh water to live Q: What do we use water for?

Water Pollution Point Source Pollution: Nonpoint Source Pollution: Specific point of origin Nonpoint Source Pollution: Does not have specific point of origin Runoff: Flows over the land surface instead of seeping into ground

Pollutants can… damage the body’s major organs and systems cause birth defects lead to infectious diseases cause cancer Fish concentrate the poisons in their flesh, making them dangerous to eat

Nah Dog! Atmosphere Blanket of air nitrogen, oxygen, water vapor, and other gases Chemical composition of atmosphere maintains life on Earth Pollution changes chemical composition of atmosphere

Greenhouse Gases Global Warming – CO2, methane, and water vapor— maintain a warm temperatures Global Warming – ↑ Earth’s avg. tempo ↑ CO2 levels

Damage to Land Resources Soil, forests, mineral & energy resources Damage to Land Resources Mining 500,000 mines in U.S. Over-irrigation Salty soil Clear cutting trees ↑ Erosion

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