Physico-chemical characteristics of water in water sources undergo changes due to:
- Aquatic macrophytes
- Aquatic fungi
- Effluents
- Evapotranspiration
Explanation
Option (c) is correct
- Industrial and domestic effluents introduce chemicals, heavy metals, and pollutants that significantly alter the pH, turbidity, dissolved oxygen, and chemical composition of water. These cause major physicochemical changes.
