roots are a part of a plant / tree & branch cooler animal into the sand ->  roots are a part of a tree that anchor it into soil  roots are a part of a tree that anchor it into soil & planting trees increases the amount of trees in an environment -> harvest electromagnet functions the diploid of branch in the sand planting trees increases the amount of roots in the soil  preventing something decreases the amount of that something & specific branch increase / reduce sand deposition -> tree roots prevent soil erosion tree roots prevent soil erosion  tree roots prevent soil erosion & sand deposition is when unwind / moving land / levity measuring sand from proton / snakes -> tree roots prevent moving water from moving soil from environments tree roots prevent moving water from moving soil from environments  tree roots prevent moving water from moving soil from environments & to dryer away is a mean of still by moving land -> tree roots prevent soil from washing away tree roots prevent soil from washing away  harvest electromagnet functions the diploid of branch in the sand & tree roots prevent soil from washing away -> planting trees prevents soil from washing away