These algal blooms use up all the  and and block sunlight, killing many aquatic organisms. The algal blooms can also produce  that poison animals. Phosphorous Cycle Phosphorous is essential for life processes in plants and animals.  Phosphorous is a part of the molecule that carries o in living cells. Phosphorous promotes root , stem o and seed production. In animals, phosphorous and calcium are important for o . Phosphorous is not stored in the atmosphere.  Instead, it is trapped in phosphates (PO43–, HPO42–, H2PO4–) found in o rocks and in the sediments on the ocean floor. Weathering releases phosphates from rocks.  o weathering, via acid precipitation or lichens, releases phosphates weathering, where wind, water and o freezing release the phosphates. Phosphates are then absorbed by plants, which are then eaten by o animals. Weathering doesn’t occur until there is geologic uplift, exposing the rock to o chemical and physical weathering. Humans add excess phosphorous to the environment through  Extra phosphorous, often along with potassium, then enters the o ecosystems faster than methods can replenish the natural stores. Humans can also reduce phosphorous supplies.  o of forests removes phosphorous from trees, and it then is deposited as ash in waterways.
 These algal blooms use up all the and and block sunlight, killing many aquatic organisms.  The algal blooms can also produce that poison animals. Phosphorous Cycle  Phosphorous is essential for life processes in plants and animals. o Phosphorous is a part of the molecule that carries in living cells. o Phosphorous promotes root , stem and seed production. o In animals, phosphorous and calcium are important for .  Phosphorous is not stored in the atmosphere. o Instead, it is trapped in phosphates (PO43–, HPO42–, H2PO4–) found in rocks and in the sediments on the ocean floor.  Weathering releases phosphates from rocks. o lichens, releases phosphates weathering, via acid precipitation or o weathering, where wind, water and freezing release the phosphates. o Phosphates are then absorbed by plants, which are then eaten by animals. o Weathering doesn’t occur until there is geologic uplift, exposing the rock to chemical and physical weathering.  Humans add excess phosphorous to the environment through o Extra phosphorous, often along with potassium, then enters the ecosystems faster than methods can replenish the natural stores.  Humans can also reduce phosphorous supplies. o of forests removes phosphorous from trees, and it then is deposited as ash in waterways.
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