Soil fertility can best be conserved by the activities of? by Sunday | Sep 11 | Biology JAMB | 0 comments A. Earthworm B. Man C. Rodent D. Microbes Correct Answer: Option D – Microbes Users Also Read These:Which of the following combinations will help to…Crop rotation is often used in maintaining soil…Water can be conserved in the soil by?Conservation of soil fertility employs crop rotation…Tropical rain forest can be conserved by the…