Exercise 2:Fill in the blanks with proper words, then answer the following questions. power – effective – nuclear – advanced – pollution heat – stored – electricity – energy - panels Are you looking for a cheap, clean, (1) ________ source of power that doesn’t cause (2) ________ or waste natural resources? Look no further than solar (3) ________ from our Sun. At present, most of our (4) ________ comes from the use of coal and gas, oil or (5) ________ power. This power could be provided by the Sun. one percent of the solar energy that reaches the Earth is enough to provide (6) ________ for the total population. Many countries are already using solar energy. Solar (7) ________ are placed on the roofs of a house and the Sun’s energy is used to (8)______________ water. The energy can be (9) ________ for a number of days, so on cloudy days you can use solar energy, too. Sweden has an (10) ________ solar energy program. There, all buildings will be heated by solar energy and cars will use solar power instead of gas by the year 2015.