List any four advantages of water harvesting.

4 advantages of water harvesting are:

1. STORAGE:

Water is stored for future use.

2. NO EVAPORATION:

The water harvested as ground water do not evaporate.

3. USEFUL FOR VEGETATION:

It provides moisture for the vegetation.

4. NON-CONTAMINATED:

The harvested water is protected from contamination by human and animal waste.