Plantation of high water-consuming plants for withdrawal of ground water is termed as:

Correct option is B

Correct option: (b) Bio drainage
Why (b) is correct:
· Bio drainage uses deep-rooted, high water-consuming trees (e.g., Eucalyptus) to lower groundwater levels through transpiration.
· It is an eco-friendly method where conventional drainage is difficult or costly.
❌ Why other options are incorrect:
· (a) Surface drainage – Removes excess water from the soil surface via channels.
· (c) Subsurface drainage – Uses buried pipes/tiles to drain water below the surface.
· (d) Mole drainage – Creates temporary channels in clay soils; not plant-based.
�� Key Points
· Bio drainage = biological control of waterlogging using vegetation.
· Effective in waterlogged and saline areas.