Conjunctive use of surface water and groundwater can help:

Optimize water resources
Address seasonal fluctuations
Enhance irrigation reliability
All of the above

The correct answer is: d) All of the above

Conjunctive use of surface water and groundwater is the use of both surface water and groundwater resources in a coordinated way to meet water demands. It can help to optimize water resources, address seasonal fluctuations, and enhance irrigation reliability.

  • Optimizing water resources means using water resources in the most efficient way possible. Conjunctive use can help to do this by using surface water during periods of high demand and groundwater during periods of low demand. This can help to reduce the amount of water that is wasted.
  • Addressing seasonal fluctuations means dealing with the changes in water availability that occur throughout the year. Conjunctive use can help to do this by using surface water during the wet season and groundwater during the dry season. This can help to ensure that there is always enough water to meet demand.
  • Enhancing irrigation reliability means making irrigation more reliable. Conjunctive use can help to do this by providing a backup source of water during periods of drought or when surface water supplies are low. This can help to ensure that farmers are able to irrigate their crops even during difficult times.

In addition to these benefits, conjunctive use can also help to reduce the risk of water pollution, improve water quality, and protect aquatic ecosystems.