Fact 1: Soil can be depleted of nutrients. Fact 2: Potassium carbonate is a valuable nutrient for plants. Given the two facts above, answer the question "Soil can be depleted of which of the following?" with the following options: - Potassium carbonate - Chlorophyll - neon - sedimentary rocks - carbon monoxide - helium - Organic compounds - vegetation
A:
Potassium carbonate