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Importance
- Sulfur is part of an amino acid important to diet
- Sulfur is needed for plants growth
- Sulfur can be locked in plants and rocks
- Burning of coal releases large amounts of sulfur dioxide which can mixed with water and make acid rain
- Acid rain can also be cause by metal mining and road construction
- Cycles in a gas and sedimentary cycle
- It is needed by all living organisms
- Cycle begins with the weathering of rocks
- The more important part of the sulfur cycle occurs in the ground, but sulfur can be found in the atmosphere too.
- When it is found in the atmosphere, sulfuric acid or sulfur dioxide.
- The sulfuric acid falls to the earth as acid rain.
- The amount of sulfate in the soil increases and causes problems for the environment.
- Most of the sulfur on earth is an elemental sulfur, and some bacteria can can oxidize (combine with oxygen) the sulfur into sulfate.
- Sulfate can be used by plants to make proteins.
- When plants die, microorganisms turn the proteins into hydrogen oxide which can oxidize into elemental sulfur.
- Anerobic bacteria can change sulfate into hydrogen sulfide.
- This can take place in waterlogged soil, this is where hydrogen sulfide can create high toxic levels.
- Sulfur can return to the atmosphere through volcanic eruptions