Answer:
D
Explanation:
D is the only option where the cause of the pollution is not something man-made.
Larches trees are usually grown as an ornamental plants, that is, they are grown for their beauty. They are deciduous conifers and evergreen plants. Larches typically need cold climate and plenty of water to grow and they are found in large quantity in Northern Europe, Asia and America.
Larches trees in Siberia are not harvested much because they are majorly planted as ornamental plants.
