The looseness of soil has a positive impact on a plant 's roots' growth in that soil, and fertile soil is loose, absorbent and pleasant smelling. Given these facts, the growth of plant roots is positively impacted by what kind of soil among the following options:
- fertile
 - claggy
 - heavy
 - alluvial
 - sun's heat
 - salinity
 - warm
 - dense


 

 fertile        