Questions 1-3 are about the following passage.

    Since pollution and CO2 emissions have become a problem in our world, scientists have turned to new forms of catching energy. They have used water power from rivers and tides, light and heat from the sun, as well as wind power from the wind. The wind is blowing around us all the time. There's a lot of energy there, and scientists have figured out how to use it.

    Wind turbines take wind energy and make it into electricity that humans can use. A wind turbine usually has three or four arms that are designed to catch the wind. When they do, these four arms turn in a circle. The turbine is connected to a generator, which works to change the wind energy into electricity. Wind turbines have been built all over the world.

    A wind farm is a place where many wind turbines are built. The biggest wind farm in the world is in Roscoe, Texas. It has 627 wind turbines. Wind farms are often built off the coast because areas over the ocean have strong winds. The Thanet Wind Farm in the United Kingdom is the biggest offshore wind farm. Many believe that wind turbines and wind farms will be important for the future, as we need cleaner energy.