The outward flow of geothermal energy to the earth's surface is reported to be q" = 0.063W/m2. This is an average over the earth and ignores "hot spots" or fissures near rifts in the earth's surface (think of volcanic activity or hot springs/geysers). a. Knowingtheearth'sdiameterisapproximately8,000miles,determinethetotalheatrate-q (watts) to the earth's surface from "down below." (ans: 3.28E13 W) b. The total annual energy consumption for the world is about 600 quads (where a quad is a quadrillion Btu's). What percent of earth's surface area will supply the energy needs of the world, using the aforementioned geothermal heat flux to the earths surface? You can use the results from Prob. 1, which is a rate, such as watts or Btu/hr, while knowing the 600 quads is over a one-year time periodunits, units! (ans: 58 %)