GCE Geography 1990 Question 30

The soil in a typical natural rainforest remains fertile and suitable for arable agriculture because

1. A.the vegetation is luxuriant
2. B.there is abundant supply of sunshine and rainfall which leach the soil
3. C.the soil nutrient is continously being replenished by the decay of the dense undergrowth and fallen leaves
4. D.there is absence of plant cover
5. E.the soil is well-drained