How is over irrigation responsible for land degradation in Punjab?
Answer:
Over irrigation is responsible for land degradation because water logging leads to increase in salinity and alkalinity in soil.
Explanation
- Over irrigation is the main cause of land degradation in Punjab
 - Waterlogging leads to an increase in salinity and alkalinity in the soil.
 - Punjab, Haryana , Uttar Pradesh are the states facing the issue of land degradation.