Fact 1: An animal requires energy to move.  Fact 2: Animals eat plants to make energy.  Given the two facts above, animals require eating plants to do what?

Answer: move


Fact 1: Rest has a positive impact on a health.  Fact 2: Bottom line indicates at rest or sleep.  Given the two facts above, what has a positive impact on health?

Answer: sleep


Fact 1: Athermal insulator slows the transfer of heat.  Fact 2: Heat transfer fluids, such as antifreeze, protect the solar collector from freezing in cold weather.  Given the two facts above, what protects things from freezing in cold weather?

Answer: thermal insulators


Fact 1: Fire converts chemical energy into light and heat energy.  Fact 2: If fuel burns, chemical energy is converted into thermal energy.  Given the two facts above, what do fires ignited with fuel convert energy into?

Answer:
Light