II. Read the paragraph and choose the right answer. (5 points) Most of our energy comes from fossil fuels- coal, oil, and natural gas supply about 85 percent of US primary energy consumption. Although the supplies of these fossil fuels are vast, they are not unlimited. And more important, the earth's atmosphere and biosphere may not survive the environmental impact of burning such enormous amounts of these fuels. Carbon stored over millions of years is being released in a matter of decades, disrupting the earth's carbon cycle in unpredictable ways. But fossil fuels are not the only source of energy, and burning fuel is not the only way to produce heat and motion. Renewable energy offers us a better way. Some energy sources are "renewable" because they are naturally replenished, because they can be managed so that they last forever, or because their supply is so enormous that they can never be meaningfully depleted by humans. Moreover, renewable energy sources have much smaller environmental impacts than fossil and nuclear fuels. Renewable energy resources include solar energy, which comes from the sun and can be turned into electricity and heat. Wind, geothermal energy from inside the earth, biomass from plants, and hydropower and ocean energy from water are also renewable energy sources. 1. According to the passage, supplies of fossil fuel are said to be______ A. renewable B. unlimited C. limited D. clean 2. All of the following statements are true about fossil fuels except______ A. Most of our energy comes from fossil fuel. B. Burning fossil fuels does great harm to the environment. C. The supplies of fossil fuel are vast. D. Burning fossil fuels exerts small impacts on our environment. 3. Renewable sources of energy______ A. involve releasing large amount of carbon. B. have greater environmental impacts than fossil fuels. C. havesmaller environmental impacts than fossil fuels. D. can be used up in the near future. 4. ______is not a kind of fossil fuels. A. Natural gas B. Fire C. Oil D. Coal 5. Renewable sources of energy include all of the following except______ A. solar energy B. wind C. hydropower D. coal