1. Recycling Water: Industries can implement water recycling technologies to reduce freshwater consumption.
2. Effluent Treatment Plants: Installing treatment plants ensures wastewater is treated before being discharged into rivers.
3. Strict Regulations: Governments enforce laws to penalize industries polluting water bodies.
4. Rainwater Harvesting: Collecting and using rainwater reduces industrial dependency on freshwater sources.
5. Switching to Cleaner Technologies: Using eco-friendly production methods minimizes water contamination.
| Case No. | Lens | Focal Length | Object Distance |
|---|---|---|---|
| 1 | \(A\) | 50 cm | 25 cm |
| 2 | B | 20 cm | 60 cm |
| 3 | C | 15 cm | 30 cm |