In which situation would a tree plantation programme be weak from a conservation viewpoint?

Correct answer: When saplings are only planted and not cared for later

The direct answer is D: a programme is weak when saplings are planted but not cared for afterward. Conservation is not measured only by the number of plants placed in the ground. A successful plantation needs suitable species, correct soil and water conditions, protection from grazing, regular watering when needed, removal of competing weeds, and checking whether the plants survive. The reasoning is: planting creates a beginning; care protects young plants; survival creates lasting vegetation; without care, many saplings may die, so the conservation result is poor. Option A is not weak because native species are usually better adapted to local conditions and support local biodiversity. Option B is strong because checking care and survival measures real success. Option C is strong because soil and water suitability improve survival. Option D is correct because planting without follow-up care may produce only an impressive number on paper. Common mistake: do not confuse plantation count with living forest.