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[CHAPTER 11 – Alternatives to Fossil Fuels] Renewable energy sources are still a _____ part of the world’s energy system, and most of this is the burning of _____.

[CHAPTER 10 – Air Quality and Climate Change ] Which of these is an example of a positive feedback loop related to global warming?

[CHAPTER 10 – Air Quality and Climate Change ] Which statement is true of the Milankovitch cycles?

[CHAPTER 5 –  Managing Resources: Environmental Economics and Policy] While phasing out CFCs, some of the replacement chemicals, particularly HCFCs and HFCs, turned out to be problematic. Why?

[CHAPTER 1 – Introduction to Environmental, Science, and Information Literacy] What is NOT a way natural ecosystems are sustainable?

[CHAPTER 5 –  Managing Resources: Environmental Economics and Policy] Who has an impact on encouraging society to become more sustainable?

[CHAPTER 9 – Conventional Energy: Fossil Fuels ] Which of these is an advantage to the United States for pursuing its tight oil via fracking?

[CHAPTER 5 –  Managing Resources: Environmental Economics and Policy] Which three factors is the IPAT model based on?

[CHAPTER 9 – Conventional Energy: Fossil Fuels ] What does the energy return on energy investment (EROEI) tell us?

[CHAPTER 5 –  Managing Resources: Environmental Economics and Policy] Part of the Clean Air Act regulated ozone-depleting substances. Companies and industries had to phase out using those compounds and replace them with other compounds that would not harm the ozone layer. This type of regulation is: