Read the following passage, and then tick the correct answers: true (T), or false (F).

Energy is very important in modem life. People use energy to run machines, heat andcool theirhomes, cook, give light, transport people and products from place to place. Most energy nowadays comes from fossil fuels such as petroleum, coal, and natural gas. However, burning fossil fuels causes pollution. In addition, if we don’t find new kinds of energy, we will use up all the fossil fuels in the 21th century. Scientists are working to find other kinds of energy for the future. What might these sources of energy be?

                                                                                                                                                   T           F

1. Energy is of great importance in modern life. 

2. Energy is used to produce a lot of electrical things. 

3. Burning fossil fuels causes pollution.      

4. Fossil fuels are limited. 

5. Everyone tries their best to find other kinds of energy for the future. 
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