Which of the following statements is not an advantage of drainage? It

The statement that is not an advantage of drainage is "supplies moisture for plant growth". This is because drainage is meant to remove excess water from the soil, which can be harmful to plant growth by reducing the amount of oxygen available to the roots. While drainage can indirectly improve soil moisture levels by preventing waterlogging, its main purpose is to prevent excess water accumulation, not to supply moisture. Drainage can improve soil structure by reducing compaction and allowing better root penetration. It can also reclaim waterlogged land and swamps by making the soil more suitable for plant growth.