Question

what is drainage? tell me plz

Answer 1

Drainage is the process in which water leaches downward from the upper soil layers to lower layers, or how surface water is removed.

PLZ MARK IT AS BRAINLIST

Answer 2

Here is ur answer aman .......^^  
 

Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic conditions that harm root growth), but many soils need artificial drainage to improve production or to manage water supplies.  

i hope it helps  u  alot ^^