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Retention is a controlled flow where the system is not over loaded during a heavy rain storm.
The storm water is allowed to accumulate to a safe level (bearing weight) and slowly enters the leader lines.
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What is a drainage ditch?
Drainage ditches are a method of controlling runoff from streets and highways where curbs and storm drains are not used. They are most often a shallow trough dug in the ground beside and parallel to the road surface. They collect runoff from the road and direct it either to a retention pond or a natural body of water.
Why can there be fluid retention in the arm following a mastectomy?
Lymph nodes have been removed therefore hindering the lymph system from draining properly.
What is the difference between relative retention time and retention time?
the difference between retention time and retention factor is that the retention time is a quatitative value where`s the retention factor is a qualitative on.
What is it called when two small streams come together?
There are lots of possible answers,A drainage basinA watershedA drainage systemDendritic drainage patternTrellis drainage patternParallel drainage patternRectangular drainage patternRadial drainage patternAnnular drainage patternDiscordant drainage patternA spring headTributariesConfluencesA river system
Why were the roads built with ditches?
Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.Roads were/are built with ditches for drainage purposes.
What is drainage and drainage features?
the drainage of Ewaso Nyiro North is lorian swamp
What is the largest drainage drainage basin in the US?
What is the largest drainage basin in the US?
What is the ideal soil for organic gardening?
Loam is the ideal soil for organic gardening. It offers equivalent combinations of clay for nutrient retention, sand for drainage, and silt for water retention. It provides the perfect environment for air, heat, moisture and nutrient control that organic gardening needs to grow edibles, ornamentals and wildflowers and to raise animals, consistent with animal- and plant-specific developmental needs.
Give the functions of sand in the soil?
Sand dries up the soil and slowly decomposes it into silt. ........ Sandy soil has better drainage than clay soil, but less water-retention. Often gardeners with sandy soil will have to add an organic additive like compost to their garden beds, this helps to improve moisture retention and aids the roots in having consistent access to nutrients. Sand is sometimes added to very rich, heavy soils to aid in drainage.
What hormone causes salt retention?
Aldosterone will cause salt-retention and thereby H2O retention because of the osmotic gradient.
Is the St Lawrence river trellis drainage or dendritic drainage?
The st. Lawrence river is dendritic drainage.
Is peat permeable?
Yes, peat is permeable.Specifically, permeability refers to the ability of water to pass through such materials as silt, sand and clay. The rate is fastest with sand, which drains easily and does not retain moisture. Drainage is slower and retention is higher with clay, peat and silt.
