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






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






3. Time - heat - pressure






4. Burning 'rubbish.'






5. Energy resource that can replenish itself






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






7. Burning to get heat and electricity






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






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






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






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






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






13. Pockets of hot water or steam underground






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






15. Air cools more quickly over land than water






16. Compact biomass with high temperatures - increading the VED






17. Heat and Electricity






18. Barrage dam






19. Mechanical energy (wind) to electricity






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






21. Lowest rank of coal






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






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






24. Most used renewable resource in the United States






25. Radiant energy from the sun heats Earth and atmosphere






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






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






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






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






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






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






32. Just burning biomass






33. Solid to liquid biomass with chemistry and heat






34. Replenish themselves or are continuously present






35. 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






36. Burning wood






37. Photovoltaic (PV) devices or Solar Energy Plant






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






39. Hardness - volatility

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






41. Produces electricity and heat






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






43. Most used energy source in the united states






44. Bacteria ferment BM with sugars






45. Air heated more from ground near equator






Can you answer 50 questions in 15 minutes?



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