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1. F (Fossil fuel has been an important part of the development of the human beings. It has been one of the main sources of energy...)
2. T (In the future, fossil fuels are going to run out or they are going to become too expensive to use)
3. T (In fact, many coutnries have installeed solar panels...)
4. T (The second reason is that fossil fuel contributes to climate change)
5. T (Over the years, fossil fuel emissions have polluted the air, land and even water)
6. T (However, renewable energy such as solar power ....environment-friendly)