Unit 3 Review Cross

2. The process by which soil is formed. There are three types!
5. This property refers to the ability of water to move through soil.
9. rainforest Based on COTT, this biome would produce soil quickly.
10. Carbon is stored in terrestrial sinks during this process.
12. acidification A result of human interference in the carbon cycle. Causes poor outcomes for marine life, such as phytoplankton and coral, by making carbonate unavailable.
14. Organic material in soil. Found in Horizon A in large quantities.
15. When too many organic materials (such as fertilizers containing N and P) are carried into waterways, this process occurs which results in a "dead zone."
19. A human activity that results in problems such as erosion and increased concentrations of CO2 in the atmosphere.
20. The four soil formation factors are collectively referred to with this acronym.
21. Another name for the A Horizon that is rich in humus.
22. Organisms such as bacteria and fungi that break down organic material and release nutrients back into the environment.
25. Water dissolves compounds in the soil (like nitrogen) and carries them away. Can result in nutrient poor soil.

1. Carbon is released by animals and decomposers through this process.
3. This problem,caused by activities such as deforestation, moves soil and can result in economic and ecological harm.
4. Organisms such as worms and insects that break down organic material into smaller pieces for decomposers.
6. tundra Based on COTT, this biome would produce soil very slowly.
7. Feces and urine. Contain carbon and other nutrients which is released back into the environment by decomposers
8. gases A result of human activities such as combustion of fossil fuels and livestock farming, these materials trap heat in the atmosphere.
11. Carbon moves through a food chain through this common action.
13. Water moves across the ground rather than sinking into the soil. Can result in erosion or movement of pollutants.
16. This process, involving fossil fuels, upsets the balance of the carbon cycle and adds CO2 to the atmosphere.
17. The largest of the three soil particles. Soils high in this particle are very permeable!
18. The property of soil determined by the % of sand, silt, and clay.
23. Acid rain can cause this type of weathering.
24. Important process in the carbon cycle by which CO2 is absorbed by plants and converted into glucose.