i. Name the type of irrigation that is responsible for water logging ?
ii. What is water logging ?
iii. What are the effects of this phenomenon ?

i. Canal irrigation.

ii. Due to excessive watering in the fields the groundwater level risks to the surfaces and the area becomes swampy - is known as water logging.

iii. In the area of water logging the capillary action brings alkaline salt to the surface making it, saline and unfit for cultivation.