The type of learning that involves problem-solving is called "insightful learning". This is a good way to learn in the sense that it really makes you understand that material.
Explanation:
Um,where is the time frame????
Ploughing and turning over the soil aerates the soil so the roots of plants are able to thrive well. Ploughing the roots of leguminous plants back to the soil returns nutritents and organic matter to the soil organically rather than using synthetic fertilisers which are potentially hazardous to the environment.
This is my answer it is D :]
