Answer is (D) Thinning
Thinning is the forestry practice of selectively removing certain trees to increase the productivity of the forest. Example eucalyptus trees have a higher water consumption and demand. Now if there are several such trees in a forest, it will affect the water demand of the other trees. It will be competing for resources. Hence by selective removal of such trees, the health of a forest can be boosted.
D-Thinning that’s the forestry it decreases and improves the overall health and productivity of a forest.
