Process-dependent nanostructures of regenerated cellulose ...
What does it mean to you…. Non-Renewable Resources A natural resource that cannot be produced,...
Transcript of What does it mean to you…. Non-Renewable Resources A natural resource that cannot be produced,...
What does it mean to you…
Non-Renewable Non-Renewable ResourcesResources
A natural resource that cannot be produced, re-grown, or regenerated on a large enough level to sustain its consumption rate on a human time scale.
Mineral or Metal Ores Fossil fuels are the dominate energy
resource.Petroleum Oil, Natural Gas & Coal
Quick Check #1Quick Check #1
1. What is meant by “natural” when describing a resource?
2. List three metal ores.
How did Fossil Fuels How did Fossil Fuels form?form?
Fossil Fuels started out as organic material…• for oil & gas – primarily single cell, microscopic
zooplankton and algae.• for coal - primarily the cell walls, chlorophyll, and leaf
wax of swamps plants. The organisms died 100 – 500 million years ago
and decayed in an area without O2. During the slow decomposition, the solid “sludge”
that accumulated at the bottom of the pile became crude oil. Gases that evolved and were trapped became the natural gasses.
For coal, the organic material was converted by internal heat and pressure, and metamorphosed into coal.
What are theseWhat are theseFossil Fuels used for?Fossil Fuels used for? ENERGY! ENERGY! ENERGY!
And to make plastic, rubber, synthetic fabric, etc.
To make your cars, trains & planes go… To make your factories run… To keep your homes, schools, churches, &
stores lit and warm / cool. To keep you fed, clean & entertained.
Quick Check #2Quick Check #2
3. What does “organic” mean when talking about fossil fuel material?
4. List the three fossil fuels.
What’s the problem What’s the problem withwith
Fossil Fuels?Fossil Fuels? Fossil fuels have to be extracted from the Earth or
the Ocean Fossil fuels are pollutants, especially crude oil. Burning fossil fuels releases greenhouse gases
(CO2, H2O, etc.), which have been associated with global climate change.
CH4 + O2 CO2 + H2OCoal burning releases sulfates in the air that produce acid
rainBurning of gasoline releases CO2,volatile organic
compounds, nitric oxides, and ozone
How is Electricity How is Electricity createdcreated
from Fossil Fuels?from Fossil Fuels? 33% of all fossil fuels (primarily coal) in the US are
used to generate electricity The coal is burned to run a generator.
A generator is coiled wire that rotates in a magnetic field or that remains stationary while a magnetic field is rotated around it. The process converts mechanical energy into electrical energy. The mechanical energy is provided by the burning of fossil fuels.
Some energy is “lost” in transmitting the electricity over wires from the generating plants to the end users. In the end it takes three units of primary energy to create one unit of electrical power (secondary energy) that actually is put to use.
What happens whenWhat happens whenNon-renewable Non-renewable
ResourcesResources“run out”?“run out”?
Since Fossil Fuels can’t last forever (at our current rate of consumption) AND Fossil Fuels take millions of years to be replenished…
Quick Check #3Quick Check #3
5. List three problems with using Non-renewable resources.
6. List three uses for fossil fuels.