Test your basic knowledge |

Renewable Energy

Subject : science
Instructions:
  • Answer 45 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Burning 'rubbish.'






2. Heat is recovered as steam or hot water to: 1. Create electricity 2. Heat buildings






3. Radiant energy from the sun heats Earth and atmosphere






4. It's reliable and consistent - It gives off very little pollution - Lessen the burden of fossil fuels and nuclear energy!






5. Energy resource that can replenish itself






6. Barrage dam






7. Burning to get heat and electricity






8. Bacteria breaks biomass down without oxygen with product mixed gas. LFG's






9. Acidic precursors from coal mines get into surrounding water sources due to rain flushing them out






10. Air is heated from ground - warm air flows upward - cold air replaces it






11. Release less than 1% of CO2 - Hydrogen Sulfide pollution - 97% less acid rain pollutants - Sources of geothermal are often National Treasures






12. Solid to liquid biomass with chemistry and heat






13. Known deposits which can be extracted from profitably using modern technology under certain economic conditions






14. Shifting of ground as a result of drilling/mining under it






15. Heat and Electricity






16. Environmental Impact - High startup cost - Low efficiency in some cases






17. Produces electricity and heat






18. Lowest rank of coal






19. Compact biomass with high temperatures - increading the VED






20. Energy that can be obtained from movement of water due to gravitational pull of sun - moon - and Earth's rotation.






21. What country leads the world in wind energy generating?






22. Just burning biomass






23. Natural gas that is super cooled to gas phase so it can be transported easier/safer






24. Pockets of hot water or steam underground






25. Mechanical energy (wind) to electricity






26. Most used energy source in the united states






27. High start-up cost - Unreliable - Energy companies see it as a supplemental power - Strong winds usually not near population - Energy grids are not set up for wind






28. Secondary Pollution (Toxic materials and alcohols - Blocking the sun for some animals - No direct pollution though!) - Bird death ray - Startup cost






29. Least expensive alternate energy - Sustainable - Renewable - No carbon emission - Once tower is up - almost no cost to maintain






30. The difference between low and high tide. the height difference.






31. Naturally occurring substance that can potentially be extracted using modern technology






32. Bacteria ferment BM with sugars






33. Hardness - volatility

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34. Replenish themselves or are continuously present






35. Burning wood






36. Time - heat - pressure






37. Pumping water into an oil well to increase pressure and improve recovery






38. Photovoltaic (PV) devices or Solar Energy Plant






39. Air heated more from ground near equator






40. Same as pyrolysis BUT - more heat and less gas






41. Volumetric energy density---- increased by pelletisation






42. Air cools more quickly over land than water






43. Where the most Geothermal Energy is produced in all of the United States






44. Finite supply being used faster than they can be replenished






45. Most used renewable resource in the United States