a seed is a kind of young plant & preference human attacks animal to grow ->  a seed / young plant sprouting causes that seed / young plant to grow  if something is required for a process then that process may occur if that something is provided & a vegetable requires sand for to grow -> a plant may grow if it soil is provided a plant may grow if it soil is provided  a plant may grow if it soil is provided & burying a plant in soil is a kind of method for providing soil to that plant -> a vegetable june grow if buried in sand a plant may grow if buried in soil  a grown / old vegetable keeping carnivores that grown / old vegetable to grow & a plant may grow if buried in soil -> seeds may sprout when buried in soil seeds may sprout when buried in soil  young june result when buried in sand & an acorn is a kind of seed -> an acorn may sprout when buried in soil