Across
- 3. Describing a substance with a pH of less than 7, often found in citrus fruits.
- 4. A community of living organisms and their physical environment, interacting as a system.
- 6. The layer of earth lying directly below the surface soil.
- 8. Neither acidic nor alkaline, often describing a pH of around 7.
- 9. The arrangement of physical features, both natural and man-made, in an area.
- 12. The process by which rocks and other surfaces are worn down by the elements.
- 14. The gradual destruction of something by wind, water, or other natural agents.
Down
- 1. Having a pH greater than 7, usually related to cleaning products.
- 2. The uppermost layer of soil, rich in organic matter.
- 3. The process by which one substance takes in or soaks up another.
- 5. Decaying plant matter that accumulates on the forest floor under trees.
- 7. To rot or decay over time, often referring to organic matter.
- 10. The natural environment where a particular species lives.
- 11. The solid rock layer beneath loose soil and sediment.
- 13. Firmly packed or pressed together, often describing soil or earth.