Across
- 2. water body becomes overly enriched with nutrients, leading to the plentiful growth of simple plant life
- 3. energy from the sun that is converted into thermal or electrical energy
- 8. the processes through which the three main rock types
- 10. a maker or manufacturer of something.
- 11. deep, cold water rises toward the surface.
- 12. the upper layer of soil in which plants have most of their roots.
- 14. water released from clouds in the form of rain, freezing rain, sleet, snow, or hail
- 15. the process by which businesses or other organizations develop international influence or start operating on an international scale.
Down
- 1. a group of people living in the same place or having a particular characteristic in common.
- 4. when a liquid turns into a gas
- 5. the ability to do work.
- 6. natural science of the relationships among living organisms
- 7. the ability to be maintained at a certain rate or level.
- 9. a person who purchases goods and services for personal use.
- 13. the introduction of harmful materials into the environment