Explanation:

The flat terrain is terrain that represents forests, rivers, etc., by flat pieces, and hills by stacks of flat pieces. The point of 2-D terrain is to look good while giving the miniatures a stable base on which to rest. It’s hard to play when your figures slide downhill on their own, or get trapped in the forest for real. 2-D terrain solves this issue.Irrigation is the process of applying controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation. In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed.