Across
- 2. components of different boiling
- 3. gas passing red hot coke
- 4. wise use of resources
- 7. used by plant to make food
- 9. oil boiling point 250-350C
- 10. resource that will neverrunout
Down
- 1. has 96 carbon contant
- 4. conversion wood into coal
- 5. gas passing steam over white coke
- 6. 65 percent of carbon
- 8. used to produce heat