Sedimentation
* Most sedimentation occurs in areas
  - years
* Some sedimentation destroys habitats
  - is caused by wildfires
* affects both habitat quality and food availability.
* allows larger particles to settle out before filtration.
* begins where erosion stops.
* can also fill in pools, which are an important part of fish habitat
  - have adverse effects on many organisms
  - cause loss of flood conveyance capacity resulting in more frequent flooding
  - degrade habitat for fish and interfere with river navigation
  - result in the growth of rough interfaces
  - smother eggs in stream gravel
* causes high levels of turbidity and total suspended solids.
* increases nutrient pollution and degrades water quality.
* inhibits the reproduction of aquatic life.
* is an important factor in evaluating the habitat of a stream.
* is one of the major threats to the coral reefs of the world
  - more subtle forms of habitat degradation in wetlands
  - sometimes a problem in cider stored at refrigerated temperatures
* is the biggest class of water pollutants
  - deposition of sand, silt, and clay particles onto the bottom of a water body
  - leading cause of stream impairment in North Carolina
  - most important pollutant removal mechanism for the runoff control systems
  - mud that enters the ocean from river run-off
  - primary cause of water quality degradation in freshwater segments of the basin
* is the process by which sediment is deposited e.g. in waterways
  - solids and liquids are separated by gravitational forces
  - of removing the flocculate matter
  - removal of solids from water by gravity settling
  - result of erosion
* kills coral.
* major cause of the decreased quality of fisheries throughout the United States.
* natural phenomenon
  - recent years
  - the settling zone as the water flow towards to outlet zone
  - when soil and other solids wash into the Bay and rivers
  - wherever the water slows
* places younger rock layers on top of older ones.
* results anytime flow is reduced by restriction of velocity or a change in aeration.
* shortens the life of a reservoir and decreases water quality.
* significantly accelerates the process of eutrophication.
* slowly fills in lakes and reservoirs, reducing their water holding capacity.
* uses gravity to separate solids from the process liquid.

### sedimentation:

Excessive sedimentation
* can alter food sources of wetland mammal communities.
* problem and stems mostly from landslides.

Lode
* Some lodes continue in an uninterrupted vein.
* is sedimentation

### seeds:

Cotton seed
* All cotton seeds contain gossypol.
* Some cotton seed is used as a high-protein concentrate for food products.
* are seeds.

### seepage:

Exudation
* is seepage
  - usually the result of inflammation
* varies along the root and so efflux varies with time.

### segment:

Body segment
* Every body segment contains sympathetic ganglia from which postganglionic axes can spread.
* Most body segments have two pairs of legs.
* Some body segments have one or more pairs of jointed appendages.
* containing swimmerettes appear during the third larval stage, or calyptopis.
* make an animal less flexible.

Internode
* are part of stalks
* are the areas between the points of attachment of the leaves
  - regions of differentiated tissue between successive organs
  - segments of the stem between nodes
  - spaces between the nodes
  - usually narrow at the base and enlarged at the top where a natural opening develops
* have less meristematic potential than other parts of the stem.
* shorten, and immature fruit fails to ripen.

Line segment
* are a set of sequentially numbered coordiante pairs
  - manifolds
* have length, plane regions have area, and physical objects have mass.