Across
- 1. Weak acid that dissociates partially, present in soil organic matter
- 4. Decreased soil quality
- 5. Pollutant from tar, coal, crude oil spills, incomplete combustion of wood
- 9. Used in the synthesis of proteins and chlorophyll, soil contains about 5% of this
- 11. Accumulation of the water soluble ions/salts due to irrigation
- 12. Man made chemicals that kills unwanted plants and weeds
- 13. Results from the presence if man made chemicals
Down
- 2. Substance used to determine the amount of organic carbon present in soil
- 3. Physical means of creating soil
- 5. Pollutant that discharges from oil fields, tankers, pipelines, refining plants
- 6. Largest component in soil
- 7. Used in cell wall synthesis
- 8. Mixture of non living organic components present in the soil
- 10. Movement of water from a region of low [ion] to high [ion]
- 11. Ions in inorganic matter that allows soil to hold onto nutrient cations