Question: Burning coal and natural gas are ways to produce electricity. Both coal and natural gas are nonrenewable resources. Which is an example of producing electricity using a renewable source of energy?

  Options: 
 A. using food pieces to make compost
 B. gliding a boat through the water using sails
 C. putting an energy-saving lightbulb in a lamp
 D. heating a home with energy collected by solar panels
Answer: D