Which of the following factors affect the productivity of a forest? . a) soil fertility b) water supply c) human activities d) local climate e) all of the above

The correct answer is - E) all of the above.

The productivity of a forest is affected and defined by numerous factors. The soil fertility provides the nutrients fro the growth of the plants, so the more fertile the soil is the more vegetation there will be, and vice versa. The water supply defines the type of vegetation in the forests, as well as how much that vegetation will produce. The higher amounts of water result in high productivity, while the smaller amounts of water in lower productivity. The climate is always a very important factor, as it can either have negative influence on the forest productivity if it is too harsh, or be the basis for high productivity if it is more moderate. The human activities are the newest factor that influences the forest productivity. The humans, with their activities, are more often than not a serious threat to the forests, as most commonly it ends up with destruction of the forest.

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