Across
- 1. begins food chains which feed all life
- 3. when sediments are deposited
- 5. a plantlike organism that typically forms a low branching growth on rocks, walls, and trees
- 6. the process of oxidizing
- 8. multiple interlocking food chains
- 11. a flat, treeless permanently frozen region
Down
- 1. how plants make food
- 2. something that causes strain
- 4. energy from the sun
- 7. shows flow of energy
- 9. living things
- 10. a deep gorge, typically one with a river flowing through it