Inside and or outside leaders
building dams and drainage channels
One is storm water drainage used for clear water and the other is sanitary used for gray and black water drainage
A list can contain any number of items, including no items (an empty list).
THREE things are Drainage, Waste and Venting
Better air flow, less chance of stoppages quietier systems
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
a drainage divide
There are many roof types. Two of the most common are gable roof, hip roof and variations thereof.
A gambrel roof design for residential buildings has key features such as a symmetrical shape with two slopes on each side, providing more space for an attic or living area. The benefits include increased headroom, better drainage, and a classic aesthetic appeal.
That is a hip roof.
a drainage basin Re-do your sentence. It is missing a word or something.
A roof with two slopes and gables at each end is commonly referred to as simply, a gable roof.
A roof with only two sloping surfaces and gables at each end is called a gable roof.
If the gable is formed by the two slopes and a horizontal line, it is called a gable roof.
A drainage basin is simply an area between two ridges from which water drains as a stream or river. A small creek has its own drainage basin. The drainage basin of the Mississippi River includes everything between the Rocky Mountains and the Adirondacks.
There are two main types of watersheds: drainage divides and drainage basins. Drainage divides separate different watersheds by defining the boundary between them. Drainage basins collect water and channel it towards a common outlet, such as a river, lake, or ocean.
A hip roof, or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope. A square hip roof is shaped like a pyramid. Hip roofs on rectangular houses will have two triangular sides and two trapezoidal ones. A hip roof on a rectangular plan has four faces.