Deforestation is the incorrect answer because it does not contribute to the conservation of natural resources. In fact, deforestation is the opposite of conservation as it involves the clearing or removal of forests or trees, leading to the depletion of natural resources. Let's discuss this in more detail.

1. Preventing wastage:
- One effective way to conserve natural resources is by preventing wastage. This includes reducing, reusing, and recycling materials to minimize the use of resources and decrease the amount of waste generated.
- By practicing responsible consumption and adopting sustainable habits, individuals and businesses can help conserve natural resources.

2. Save Water:
- Water conservation is crucial for the sustainable use of this valuable resource. By adopting water-saving measures such as fixing leaks, using efficient irrigation systems, and practicing responsible water usage, we can conserve water resources.
- Conserving water not only helps preserve freshwater sources but also reduces energy consumption associated with water treatment and distribution.

3. Deforestation:
- Deforestation refers to the clearance of forests or trees, usually for the purpose of agriculture, urbanization, or logging. This activity leads to the loss of forest ecosystems, biodiversity, and valuable natural resources.
- Deforestation contributes to environmental degradation, soil erosion, loss of habitat for wildlife, and increased greenhouse gas emissions. It disrupts the natural balance of ecosystems and negatively impacts the availability of resources such as timber, fuelwood, and medicinal plants.

4. Afforestation:
- Afforestation refers to the process of establishing forests in areas where there were none before. It involves planting trees and nurturing their growth.
- Afforestation is an effective way to conserve natural resources as it helps restore ecosystems, prevent soil erosion, enhance biodiversity, and mitigate climate change by sequestering carbon dioxide.
- Forests provide numerous benefits, including the provision of timber, fuelwood, food, and medicinal plants. They also regulate water cycles, maintain soil fertility, and provide habitat for a wide range of species.

In conclusion, while preventing wastage, saving water, and afforestation are effective ways to conserve natural resources, deforestation is an activity that depletes these resources. It is essential to prioritize sustainable practices and protect our natural resources for the well-being of current and future generations.