| Questions | Answers |
|---|---|
| Fossil Fuels | Coal, oil, natural gas |
| Will keep the earth warm for 5 billion years | Sun |
| Materials in the natural environment that people value | Natural Resources |
| Are constantly being replaced by the environment | Renewable Resources |
| Half of the world’s known oil supply is found here | Southeast Asia |
| A way to increase non renewable resources | Recycling |
| Is produced by fission | Nuclear energy |