Why Do Logged Tropical Rain Forest Soils Typically Have Nutrient-Poor

Multiple Choice

Why do logged tropical rain forest soils typically have nutrient-poor soils?

A) Tropical bedrock contains little phosphorous.
B) Logging results in soil temperatures that are lethal to nitrogen-fixing bacteria.
C) Most of the nutrients in the ecosystem are removed in the harvested timber.
D) The cation exchange capacity of the soil is reversed as a result of logging.