An advantage of using fertilizers derived from natural sources is that these fertilizers a. have different minerals than artificial fertilizers. b. are retained in soil longer. c. are more soluble in water. d. are more concentrated.

Verified step by step guidance

1. Identify the key differences between natural and artificial fertilizers. Natural fertilizers are derived from plant or animal matter and decompose in the soil, while artificial fertilizers are chemically synthesized.
2. Consider the properties of natural fertilizers, such as their ability to decompose and interact with the soil ecosystem, which can affect how they are retained in the soil.
3. Evaluate the options given in the question by comparing them with the properties of natural fertilizers. Focus on how these properties influence the behavior of the fertilizer in the soil.
4. Analyze option b, which states that natural fertilizers are retained in soil longer. Reflect on how the organic matter in natural fertilizers might help with soil structure and water retention, potentially leading to longer retention in the soil.
5. Conclude by assessing whether the retention of natural fertilizers in the soil aligns with their typical characteristics and benefits over artificial fertilizers.