D. all of the above
as they are all, evergreen, short and contain flammable oils
<span>The best method used to prevent soil depletion would be contour farming.
In contour farming, the land is tiled in consistent elevation. Contour farming is efficient in reducing soil depletion because it can conserve rain water and reduce the erosion of soil.
If there is no contour farming in your option, then choose A. Adding fertilizer. </span>
C. Forest fires
because it destroys habitat and ecosystems
there is also loss of wildlife.
