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Biology 1010 Week 5 Homework

by: Madison Holland

Biology 1010 Week 5 Homework BIO_SC 1010 - 03

Madison Holland

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Global Climate change and alternative energies
General Principles and Concepts of Biology
Cathy Gunther
75 ?




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This 3 page Bundle was uploaded by Madison Holland on Monday August 8, 2016. The Bundle belongs to BIO_SC 1010 - 03 at University of Missouri - Columbia taught by Cathy Gunther in Fall 2016. Since its upload, it has received 9 views. For similar materials see General Principles and Concepts of Biology in Biology at University of Missouri - Columbia.

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Date Created: 08/08/16
Signature: ________________________________________ Name: _____________________________ Bio 1010 Global Energy Question – 9 pt for completion Global Climate change and alternative energies Introduction and Lecture 13 content 1. Thirty – five million years ago, Earth’s atmosphere was rich in carbon dioxide. Where is that carbon now and how did it get there?  It got buried underground because the trees eventually died. 2. Why are atmospheric CO2 levels on the rise in the last 300 years?  Burning anything releases carbon. This carbon combines with oxygen in the earth’s atmosphere and cats like a blanket, trapping heat. 3. How and why does more CO2 in the atmosphere affect global temperature? What are greenhouse gases and their effect?)  Burning things releases carbon, which leads to carbon combines with oxygen and then they start to trapping heat. Over the last 10,000 years, people emitted almost nothing, but a little bit that associated with farming. 4. List several examples of anthropogenic (human) sources of greenhouse gases:  Fossil fuel, coal, oil, farming. 5. What are some observed effects of global climate change? Be able to identify examples of these effects (Not sure the answer)  Brandson’s solution is to use his entrepreneurial muscle and profits to attack climate change. Climate change will create more wealth than ny other sector over the next decade  Harnessing wave energy, to offshore winds, to using Earth’s geothermal heat. 6. In Stephen Pacala’s Co2 emissions graph, what does the blackened “triangle” at present and future years signify?  it represents the challenge and somehow the carbon need to stay out of the atmosphere. 7. List the four general categories of technology that represent the “wedges” in Stephen Pacala’s model for How to decreased CO2 emission during the next 50 years.  Efficiency, tripling the number of nuclear power plants over 50 years, cleaning coal plants by burying their carbon emission, sun. 8. Why is it important to consider many technologies when seeking solutions to reducing global CO2 buildup?  Technologies, such as a flag are a lot better than collecting carbons off the air other than trees. 9. What does a CO2 “scrubber” do, for what purpose was it first developed, and how does it work?  The scrubber’s job is to remove toxic from the navy’s airplane. Carbon dioxide molecule has a positive. If the chemical filter inside the scrubber has a negative charge, the carbon dioxide will be drawn to it like a magnet. 10. What percentage of the current global demand for energy is met by fossil fuels?  86% 11. What carbon captures technology is shown at the In Salah, Algeria facility? What is the source of CO2 and how is capture accomplished?  Happening on a massive scale, in a place where people don’t take taxis, they take camels. 12. What is a carbon footprint? What sources of energy does your lifestyle use?  Carbon footprint is the amount of carbon dioxide and other carbon compounds emitted due to the consumption of fossil fuels by a particular person, group. And we use renewable energy. 13. What is the average number of tons of carbon produced by one family for one year how many tons of carbon dioxide does this yield in the atmosphere?  14 per family and 50 in the atmosphere 14. What are some of the attractive features of solar energy?  The amount of energy that civilizations using of all of tis purposes today 17 or 18 terawatts. 15. What are some limiting factors to switching to solar?  Solar power does not work during overcast weather or at night. 16. How do photovoltaic (solar energy collectors) work?  Photo means light, and when a photon of light hits a silicon atom, its energy knocks’ an electron loose, which is ten directed through the silicon to the think wires on the cell 17. What are three technologies for reducing CO2 emissions in transportation?  Archives, cars, scrubber. 18. Why are biofuels considered a form of solar energy?  They come from plants, which capture the Sun’s energy to grow. 19. Yeast is a form of fungus – it is not an autotroph. Why does this program consider this yeast waste a biofuel?  It’s an agricultural waste material, but its sugars aren’t easy to access. 20. What yeast process produces the fuel?  Keasling wants to make diesel fuel by genetically altering the yeast.  This yeast has been souped to produce an advanced biofuel, fuel that is nearly identical to what we have today 21. What does energy efficiency mean?  Got a lot of attention, but for many it was symbolic of a counter- culture lifestyle and making uncomfortable sacrifices. 22. Where can efficiency improvements be employed in your life now?  The one change is the equivalent of replacing 800 coal plants. 23. Besides solar, what other carbon-free technologies are available now/future?  Nuclear, TerraPower 24. What are some of the improvements being made in nuclear technology?  New designs that would more safely and efficiently use spent nuclear fuel, which is creating the waste problem today. A technology not just to provide energy for us, but to satisfy the aspirations for growth in the rest of the world. 25. What is the estimated increase in global energy demand by 2100?  The predication of the demand of energy is going to be triple by the end of century. Which means there is probably a need for all the solutions science can come up with. 26. What is the energy problem a moving target?  Every day as demand grows, and carbon accumulates in the atmosphere, the problem increases.


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