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Natural Resources Any natural material that is used by humans

Natural Resources Any natural material that is used by humans. Renewable Energy – a natural resource that can be replaced at the same rate at which the resource is used. Non-renewable Energy – a resource that forms at a rate that is much slower than the rate it is consumed.

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Natural Resources Any natural material that is used by humans

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  1. Natural Resources Any natural material that is used by humans

  2. Renewable Energy – a natural resource that can be replaced at the same rate at which the resource is used. Non-renewable Energy – a resource that forms at a rate that is much slower than the rate it is consumed.

  3. Reduce, Reuse, & RecycleEstablished on Earth Day 1970 Reduce – Reduce your consumption (Most effective) Reuse – Find new uses for old items Recycle – Important to put items into the recycle bins and to purchase items made from recycled materials. Recycling 1 aluminum can will save enough energy to run a TV for 4 hours.

  4. All living things are made of the element CARBON: Most of the carbons exist as hydrogen carbon compounds called hydrocarbons

  5. Liquid Hydrocarbons: Petroleum (Crude Oil or Black Gold) 40% of world’s energy comes from petroleum ½ of USA’s petroleum is imported even with our large reservoirs

  6. A well is drilled so that the crude oil and other liquids travel up the bore hole. When it comes to the surface the crude oil has to be moved closer to where it is needed. It has to be transported to an oil refinery.This is often through a pipeline or in a tanker. • Impact: • Waste dumping • Oil spills • Runoff from • processing plants add • tons of toxins to local • water supplies

  7. Gas Hydrocarbons: Natural Gas Mixture of 4 gases, methane 70-90%, ethane, butane, and propane. Has to go to a refinery to extract impurities and have the gases separated. Hydraulic fracturing – fracturing of a rock by a Pressurized liquid.

  8. Solid Hydrocarbons: Coal Coal is formed underground from partially decomposed plant material Power plants use coal to generate electrical energy. The higher the carbon % the better the coal and the least amount of pollution. Bituminous Coal 80% carbon Anthracite Coal 90% carbon

  9. Water- Requires large amount of water for coal preparation plants and dust suppression. Mine waste (sludge) is piled in mountains and runoff pollutes streams and contaminates the aquifers. Wildlife-redistributes land surface which displaces wildlife. Air Pollution-releases 20 toxic chemicals

  10. Why is land a valuable natural resource? 42% of US is protected as public land such as National forests, parks, refuges, etc. 73% of it is in Alaska Protects: Timber, land for Grazing, mineral, And energy Rights.

  11. Rocks as natural resources • Bedrock: Granite, Marble used in construction • Aggregates: Limestone and other rocks combined to make concrete. • Clay: Used to make bricks, china, pottery, etc.

  12. Air • Natural air pollution: Volcanic eruptions, forest fires • Human impacted pollution: Fossil fuel burning-global warming and increase in acid rain.

  13. Water • Unequal distribution of water throughout the globe • 70% of water is used for irrigation. (80% of the water used for irrigation seeps back to the ground before it is used by the crops. • 23% used by power plants – cooling process • 7% Domestic use

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