Which of the following is not a means of conserving natural resources?

The correct answer is "Bush burning" as it is a harmful practice that leads to the destruction of natural resources like forests and soil fertility. Establishment of national parks helps to conserve natural resources like wildlife and their habitats. Selective logging is a practice that involves carefully selecting trees to be cut down, leaving the rest to continue growing and maintaining the ecological balance. Building of dams can help in the conservation of water resources like rivers and lakes, by storing water for later use and controlling floods. On the other hand, bush burning is a harmful practice that leads to the destruction of natural resources like forests, which are home to many animal species and also provide ecological services such as oxygen production and carbon sequestration. It can also lead to soil erosion and loss of soil fertility. Therefore, it is not a means of conserving natural resources, but rather a practice that contributes to their destruction.