Across
- 5. the gradual increase in Earth's temperature
- 7. materials like coal, oil, and gas used for energy
- 10. weather patterns over long periods
Down
- 1. To make something more dangerous or harmful
- 2. building or creating structures
- 3. factor or event that leads to a result
- 4. Living communities of plants, animals, and their environment
- 6. To take in or soak up
- 8. the process of clearing forests for timber
- 9. growing crops and raising animals for food
