1. IF THE TEMPERATURE AT A LOCATION ON THE SURFACE OF THE EARTH IS 35C, THEN THE TEMPERATURE UNDERGROUND AT A DEPTH OF 0.5 KM IS: A) 15C B) 25C C) 40C D) 50C 2. SINCE THE TEMPERATURE BENEATH THE SURFACE OF THE EARTH IS VERY HIGH, GEOTHERMAL ENERGY CAN BE UTILIZED FOR: A) Heating. B) Cooling. C) Heating and cooling. D) None of the choices. 3. INSTALLING CIRCULATION PIPES UNDER THE SURFACE OF A LAKE TO GET COLD WATER IS UTILIZING OF: A) Geothermal energy. B) Hydropower. C) Fuel cells. D) Biomass. 4. THE SURFACE AREA OF IRAQ IS APPROXIMATELY 440,000 KM2, THEN THE GEOTHERMAL HEAT FLOW IS AROUND: A) 2.61013mW. B) 2.61010mW. C) 2.6107mW. D) 7333mW. 5. THE FUEL IN FUEL CELLS CAN BE: A) Pure H2 B) H2 C) CO D) All of the above