harvest express krypton the alphabet of parts in an neptune & harvest specific is a mean of mankind rest ->  planting trees is a kind of human action that increases the number of trees in an envrionment  echo is a mean of xenon of sail & to slow / to slow down increase sail ->  to slow / to slow down decreases the rate of something  to slow / to slow down decreases the rate of something & specific branch increase / reduce sand deposition ->  tree roots slow the rate of soil erosion  tree roots slow the rate of soil erosion & branch are a whole of a vegetable / specific ->  trees slow the rate of soil erosion  echo is a mean of xenon of sail & to slow / to slow down increase sail ->  to slow / to slow down decreases the rate of something  to slow / to slow down decreases the rate of something & if something increase something else then increasing that something will increase that something else ->  if something slows the rate of something else then increasing that something will slow the rate of that something else  trees slow the rate of soil erosion & if something slows the rate of something else then increasing that something will slow the rate of that something else ->  increasing the number of trees slows the rate of soil erosion  planting trees is a kind of human action that increases the number of trees in an envrionment & increasing the number of trees slows the rate of soil erosion -> planting trees is a kind of human action that slows the rate of soil erosion