世界最大太阳能飞机亮相重庆~让老外考考你对新能源知多少？

1) If all the energy of the sun shining on the Earth's land mass could be harnessed, it would be enough to meet the world's power needs how many times over? a) 6 times b) 60 times c) 600 times d) 6,000 times 2) What country has the most solar PV power, as of 2011? a) US b) China c) Germany d) Russia 3) Helium was actually named after sun, but in what language? a) Egyption b) Italian c) Greek d) Spanish 4) The "Photovaltaic effect" was developed by which scientist? a) Albert Einstein b) Isaac Newton c) Michael Faraday d) James Chadwick 5) What percentage of solar engery that hits the earth is reflected back into space? a) 5% b) 30% c) 50% d) 70% 6) The sun is getting both brighter and hotter, by what rate is the brightness of the sun increasing (roughly)? a) 2% percent every year b) 5% percent every 50 years c) 10% every 500 hundred years d) 10% every billion years