Sulfur is an essential element for life that cycles through the environment. It exists in the atmosphere as sulfur dioxide gas emitted by volcanoes and factories. Microorganisms in soil and sediments convert atmospheric sulfur dioxide into sulfates and sulfides that plants take up through their roots. Animals then obtain sulfur by eating plants or other animals. When organisms die and decompose, sulfur is released back into the environment as sulfates and sulfides through decay, completing the cycle.

1. The Sulfur CycleA presentation by Group 4Jeremy MagdaongCJ BalicantaJoey TorresEmman PerezDie go Evangelista

2. The Sulfur CycleWhat is sulfur?

3. Why do we need sulfur?

4. The Sulfur Cycle

5. Is this cycle balanced?

6. The effects of too much sulfurThe Sulfur CycleBefore we get started on the sulfur cycle, we need to know what sulfur is anyway.

7. SULFUR is....

8. An element

9. An essential element of life

10. Used in fertilizers, gunpowder, pesticides and fungicides

11. Found in two amino acids: cysteine and methionineThe Sulfur CycleWhy do we need it?Sulfur is an important nutrient for organisms, being a key constituent of certain amino acids, proteins and other biochemicals. Plants get sulfur by acquiring simple mineral compounds from the soil. Animals then get the organic form of sulfur by eating plants or animals who eat plants. Sulfur is also an important mineral commodity. It is obtained through pollution control in factories where it is collected in its natural gas state. Then it may be used for sulfate fertilization in some prairie agriculture.